Amount of zinc = 140 × (2/7) kg = 40 kg
The average score of a class of boys and girls in examination is X. The ratio of boys and girls in the class is 4:3. If the average score of the boys (X...
In nine innings of cricket, the average of a batsman is 59 runs. How many runs does he need to make it in the tenth inning to get the average score of 62?
The average of 41 consecutive odd numbers is 49. What is the largest number.
Average of 20 numbers is 90. Average of first 8 numbers is 92 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numbe...
How many identical spherical marbles having a diameter of 4 cm can be made by melting a hemisphere of radius 28 cm? (Use π = 22/...
The average number of books on history, polity and geography in a library is 110, and the average number of books on history and geography is 120. If th...
The average mark obtained by 120 candidates in a certain examination is 50. If the average marks of passed candidates are 55 and that of the failed cand...
The average number of sweets distributed in a class of 90 students is 6. If lsquo;xrsquo; number of students newly joined the class and the average beco...
The average weight of 70 notebooks kept in a box is 7 kg. When a new notebook is placed in the box, then the average is 7.1kg. Specify the weight of the...
