Let the total number of boys be x. and the total number of girls be y. The total number of books boys have = 120x The total number of books the girls have = 90y If each of the boy have read 5 books, then the remaining number of unread books = 120x – 5x = 115x The sum of the all the books = 100(x + y) = 115x + 90y 2y = 3x x : y = 2 : 3 Required % = (2/5) × 100 = 40%
What will come in place of ‘?’ in the following equation, if ‘+’ and ‘–‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
...In a certain code language, 'PLIERS' is coded as MMAFJO and 'SHOVEL' is coded as FZRLFR. How will 'WRENCH' be coded in the same language?
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the odd letter-cluster.
Seven people, A, B, C, D, E, F and G, are sitting in a straight row, facing north (not necessarily in the same order). Only 2 people sit to the right of...
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and th...
Which of the following numbers will replace the question mark (?) in the given series?
90, 110, 132, ? , 182
Pointing to the photograph of a boy, Lakshmi said, “He is my father’s sister’s husband’s daughter’s brother.” How is that boy in photograph ...
The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are ...
In the following question, select the missing number from the given series.
451, 472, 493, 514, ?, 556
Study the given pattern carefully and select the letter that can replace the question mark (?) in it.
