The correct answer is E
Average of four consecutive prime numbers P1, P2, P3, and P4 is (13 + x). If the average of P1 and P2 is (10 + x) and the average of P3 and P4 is (10 + ...
In a factory of 40 labours, if the two labours left the job whose wages were Rs. 950 and Rs. 1050 and two new labours join the factory which results in ...
The average of 7 numbers is 28. The average of first three of them is 23 and the last three of them is 42. Then the fourth number is:
Average marks scored by Vineet in five subjects are 85. The average marks scored by him (excluding his highest and lowest marks) are 65 and lowest marks...
The mean of a set of 15 numbers is 40. If the mean of the initial 5 numbers in this set is represented by the expression (12x + 10), and the mean of the...
The average cost of three chairs is Rs.16000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 4th
The average age of a group of 50 students is 16 years. If 3 students whose ages are 18 years, 26 years, and _____ years are replaced by 3 new students w...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 74.5 while average of last 5 numbers is 84.8 and 13th, 14th a...
A class of 39 students has an average test score of 24. When the score of the topper is added, the average score of the group increases to 24.25. What ...
The average monthly expenditure of a family was Rs. 2,500 during the first 4 months, Rs. 2,750 during the next 5 months and 3,550 during the last 3 mont...