Examsbook | Hand picked material and question banks

प्र: A,B and C enter into a partnership in the ratio 72:43:65. After 4 months, A increases his share by 50%. If the total profit at the end of one year be Rs. 21600, then B's share in the profit is : 2204 0

उत्तर : 1. "Rs. 4000"
व्याख्या :
Answer: A) Rs. 4000 Explanation: Given ratio of initial investments = 72:43:65 = 105 : 40 : 36. Let the initial investments be 105x, 40x and 36x. ∴A:B:C = 105x×4 + 150100×105x×8 : 40x×12 : 36x×12 = 1680x : 480x : 432x = 35 : 10 : 9. Hence, B's share = 21600×1054 = Rs. 4000.

प्र: A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is : 1870 0

उत्तर : 2. "10 km/hr"
व्याख्या :
Answer: B) 10 km/hr Explanation: Man's rate in still water = (15 - 2.5) km/hr = 12.5 km/hr. Therefore, Man's rate against the current = (12.5 - 2.5) = 10 km/hr.

प्र: 3131×31-27 =? 1789 0

उत्तर : 2. "961 x 961"
व्याख्या :
Answer: B) 961 x 961 Explanation: We know that am×an=am+n ∴3131-27 = 314 = 961 x 961.

प्र: 3125 256 ? 4 1 Which number replaces the "?" in the question? 2921 0

उत्तर : 1. "27"
व्याख्या :
Answer: A) 27 Explanation: In the given series numbers are arranged following the rule, 55,44, 33, 22, 11 Therefore, the missing number is 27.

प्र: If 3x-y=27, 3x+y=243 then find the x value 2065 0

उत्तर : 3. "4"
व्याख्या :
Answer: C) 4 Explanation: Given that 3x-y=27, 3x+y=243 ⇒3x-y =33 , 3x+y=35 => x-y=3, x+y=5 => x = 4

प्र: A person takes a loan of Rs. 200 at 5% simple interest. He returns Rs.100 at the end of one year. In order clear his dues at the end of 2 years, he would pay : 2340 0

उत्तर : 3. "Rs. 115"
व्याख्या :
Answer: C) Rs. 115 Explanation: Amount to be paid = Rs.100+200×5×1100+100×5×1100= Rs. 115.

प्र: A container contains 50 litres of milk. From that 8 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container ? 2303 0

उत्तर : 2. "29.63 litres"
व्याख्या :
Answer: B) 29.63 litres Explanation: Given that container has 50 litres of milk. After replacing 8 litres of milk with water for three times, milk contained in the container is: ⇒501-8503 ⇒50×4250×4250×4250 = 29.63 litres.

प्र: Find the ratio of the areas of the incircle and circumcircle of a square ? 1778 0

उत्तर : 4. "1 : 2"
व्याख्या :
Answer: D) 1 : 2 Explanation: Let the side of the square be x. Then, its diagonal = 2x. Radius of incircle = x/2 and radius of circumcircle =2x2 . Therefore, required ratio = πx24:πx22 = 14:12=1:2

प्र: A,B and C enter into a partnership in the ratio 72:43:65. After 4 months, A increases his share by 50%. If the total profit at the end of one year be Rs. 21600, then B's share in the profit is : 2204 05b5cc783e4d2b419777501ec

प्र: A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is : 1870 05b5cc783e4d2b419777501e7

उत्तर : 2. "10 km/hr" व्याख्या :Answer: B) 10 km/hr Explanation: Man's rate in still water = (15 - 2.5) km/hr = 12.5 km/hr. Therefore, Man's rate against the current = (12.5 - 2.5) = 10 km/hr.

प्र: 3131×31-27 =? 1789 05b5cc783e4d2b419777501e2

उत्तर : 2. "961 x 961" व्याख्या :Answer: B) 961 x 961 Explanation: We know that am×an=am+n ∴3131-27 = 314 = 961 x 961.

प्र: 3125 256 ? 4 1 Which number replaces the "?" in the question? 2921 05b5cc77fe4d2b419777501dd

उत्तर : 1. "27" व्याख्या :Answer: A) 27 Explanation: In the given series numbers are arranged following the rule, 55,44, 33, 22, 11 Therefore, the missing number is 27.

प्र: If 3x-y=27, 3x+y=243 then find the x value 2065 05b5cc77fe4d2b419777501d3

उत्तर : 3. "4" व्याख्या :Answer: C) 4 Explanation: Given that 3x-y=27, 3x+y=243 ⇒3x-y =33 , 3x+y=35 => x-y=3, x+y=5 => x = 4

प्र: A person takes a loan of Rs. 200 at 5% simple interest. He returns Rs.100 at the end of one year. In order clear his dues at the end of 2 years, he would pay : 2340 05b5cc77fe4d2b419777501d8

उत्तर : 3. "Rs. 115" व्याख्या :Answer: C) Rs. 115 Explanation: Amount to be paid = Rs.100+200×5×1100+100×5×1100= Rs. 115.

प्र: A container contains 50 litres of milk. From that 8 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container ? 2303 05b5cc77fe4d2b419777501ce

उत्तर : 2. "29.63 litres" व्याख्या :Answer: B) 29.63 litres Explanation: Given that container has 50 litres of milk. After replacing 8 litres of milk with water for three times, milk contained in the container is: ⇒501-8503 ⇒50×4250×4250×4250 = 29.63 litres.

प्र: Find the ratio of the areas of the incircle and circumcircle of a square ? 1778 05b5cc77fe4d2b419777501c9

उत्तर : 4. "1 : 2" व्याख्या :Answer: D) 1 : 2 Explanation: Let the side of the square be x. Then, its diagonal = 2x. Radius of incircle = x/2 and radius of circumcircle =2x2 . Therefore, required ratio = πx24:πx22 = 14:12=1:2

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

त्रुटि की रिपोर्ट करें

प्र: A,B and C enter into a partnership in the ratio 72:43:65. After 4 months, A increases his share by 50%. If the total profit at the end of one year be Rs. 21600, then B's share in the profit is : 2204 0

प्र: A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is : 1870 0

उत्तर : 2. "10 km/hr"
व्याख्या :
Answer: B) 10 km/hr Explanation: Man's rate in still water = (15 - 2.5) km/hr = 12.5 km/hr. Therefore, Man's rate against the current = (12.5 - 2.5) = 10 km/hr.

प्र: 3131×31-27 =? 1789 0

उत्तर : 2. "961 x 961"
व्याख्या :
Answer: B) 961 x 961 Explanation: We know that am×an=am+n ∴3131-27 = 314 = 961 x 961.

प्र: 3125 256 ? 4 1 Which number replaces the "?" in the question? 2921 0

उत्तर : 1. "27"
व्याख्या :
Answer: A) 27 Explanation: In the given series numbers are arranged following the rule, 55,44, 33, 22, 11 Therefore, the missing number is 27.

प्र: If 3x-y=27, 3x+y=243 then find the x value 2065 0

उत्तर : 3. "4"
व्याख्या :
Answer: C) 4 Explanation: Given that 3x-y=27, 3x+y=243 ⇒3x-y =33 , 3x+y=35 => x-y=3, x+y=5 => x = 4

प्र: A person takes a loan of Rs. 200 at 5% simple interest. He returns Rs.100 at the end of one year. In order clear his dues at the end of 2 years, he would pay : 2340 0

उत्तर : 3. "Rs. 115"
व्याख्या :
Answer: C) Rs. 115 Explanation: Amount to be paid = Rs.100+200×5×1100+100×5×1100= Rs. 115.

प्र: A container contains 50 litres of milk. From that 8 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container ? 2303 0

उत्तर : 2. "29.63 litres"
व्याख्या :
Answer: B) 29.63 litres Explanation: Given that container has 50 litres of milk. After replacing 8 litres of milk with water for three times, milk contained in the container is: ⇒501-8503 ⇒50×4250×4250×4250 = 29.63 litres.

प्र: Find the ratio of the areas of the incircle and circumcircle of a square ? 1778 0

उत्तर : 4. "1 : 2"
व्याख्या :
Answer: D) 1 : 2 Explanation: Let the side of the square be x. Then, its diagonal = 2x. Radius of incircle = x/2 and radius of circumcircle =2x2 . Therefore, required ratio = πx24:πx22 = 14:12=1:2