Quiz Post

A fruit seller sold big, medium and small sizes apples of Rs. 15, Rs. 10 and Rs. 5, respectively. The total number of apples sold were in the ratio 3 : 2 :...

The average of 50 numbers is 38. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is ? A. 37.5 B. 37.9 C. 36.5 D. 37.0 Answer: Option A Show Answer Solution(By Apex...

The mean of 5 numbers is 18. If one number is excluded, their mean is 16. Find the excluded number. A. 25 B. 26 C. 27 D. 28

A vessel contains a mixture of Grape, Pineapple and Banana juices in the respectively ratio of 4 : 6 : 5. 15 litres of this mixture is taken out and 8 litres of...

The common difference of the A.P. $frac{1}{3}, frac{1-3 b}{3}, frac{1-6 b}{3}$.....is A. $frac{1}{3}$ B. $-frac{1}{3}$ C. -b D. b Answer: Option C Show Answer Solution(By Apex Team) $begin{aligned}&text{ A.P.is }frac{1}{3},frac{1-3b}{3},frac{1-6b}{3},ldotsldots\ &Rightarrowfrac{1}{3},frac{1}{3}-frac{3b}{3},frac{1}{3}-frac{6b}{3},ldotsldots\ &Rightarrowfrac{1}{3},frac{1}{3}-b,frac{1}{3}-2b,ldotsldots\ &therefore d=left(frac{1}{3}-bright)-frac{1}{3}\ &quad=frac{1}{3}-b-frac{1}{3}\ &=-bend{aligned}$

The average age of a cricket team of 11 players is the same as it was 3 years back because 3 of the players whose current average age of 33 years are replaced...

The mean weight of 100 students in a class is 46 kg. The mean weight of boys is 50 and of girls is 40 kg. Therefore, the number of boys is: A. 50