In an examination a pupil’s average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination?

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A man purchased 3 blankets @ Rs.100 each, 5 blankets @ Rs.150 each and two blankets at a certain rate which is now slipped off from his memory. But he remembers that the average price of the blankets was Rs.150. Find the unknown rate of two blankets?

A. Rs.150 B. Rs.225 C. Rs.250 D. None...

The average of 35 numbers is 25. If each number is multiplied by 5, find the new average?

A. 125 B. 134 C. 170 D. 98...

The present average age of a family of five members is 26 years. If the present age of the youngest member in the family is ten years, then what was the average age of the family at the time of the birth of the youngest member ? (Assume no death occurred in the family since the birth of the youngest).

A. 18 years B. 14 years C. 20 years D. 16 years...

The average of the two-digit numbers, which remain the same when the digits interchange their positions, is__________?

A. 33 B. 44 C. 55 D. 66...

If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is__________?

A. 53.33 B. 54.68 C. 55 D. None of these...