Question
B invests 30% of his monthly salary on Travelling and
20% of remaining on Food. Again, he invested 25% of the remaining (after travelling and food expenses) on Rent. If he invested Rs. 8,400 on Rent and Food, then find his monthly salary.Solution
Let monthly salary of B = 100x Amount invested on Travelling = (30/100) × 100x = 30x Remaining amount = 100x – 30x = 70x Amount invested on Food = (20/100) × 70x = 14x Remaining amount = 70x – 14x = 56x Amount invested on Rent = (25/100) × 56x = 14x ATQ, => (14x + 14x) = 8400 => x = 300 Therefore, monthly salary of B = 100 × 300 = Rs. 30,000
What will come in the place of question mark?

What number should replace the question mark?Â
C/JQ : B/GT : : Z/CX : ?
M/14 : O/12 : : U/6 : ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 14, 12, 108
Second row:...
Find the missing term in the following series:
43 44 ? 69 185
...Find the missing number.
F : 216 : : I : ?
In each of the following questions select the related letter/word/figure/number from the given alternatives.
JRH : ? : : KOV : 51Â
Find the next term / numbers in the given series?
54, 46, 40, 36, ?