Question
The current age ratio of Akash to karan is 7:9, and the
current age ratio of karan to Chetna is 3:5. If the average of their present ages is 62 years, determine the difference between the present ages of karan and Chetna.Solution
ATQ, Let the present age of ‘Akash’ be ‘7a’ years So, present age of ‘karan’ = ‘9a’ years And, present age of ‘Chetna’ = (9a/3) × 5 = ‘15a’ years According to the question, 7a + 9a + 15a = 3 × 62 Or, 31a = 186 Or, a = 6 Required difference = 15a – 9a = 6a = 36 years
What will come in the place of question mark (?) in the given expression?
(63 - ?) ÷ 5 + √625 = 19 X (9 - 6)
- What will come in place of (?), in the given expression.
(4² + 6²) × 2 = ? What will come in the place of question mark (?) in the given expression?
(40/25) X 80 - ? = 45% of 300 - 5525.6% of 250 + √? = 119
1220 ÷ 61 ÷ 5 + 450 of 20% - 70 = √ ?
Simplify the expression:
(5x + 15) / (x² + 3x)
What will come in the place of question mark (?) in the given expression?Â
435 ÷ 29 X 792 ÷ 44 = √(? + 14) + 35 + 221 ÷ 17
...192.251 + 326.233 + 125.021 + 19.273 = ?
36% of 640 – 12.5% of 352 + 25% of 640 = ? – 48% of 432
Simplify the following expressions and choose the correct option.
18 * 15 - {3/5 of 250 + 72}
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