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Start learning 50% faster. Sign in nowLet the present age of A and B be 7x and 9x respectively. Now, (1/3(7x-6))/(1/3(9x-6))= 1/3 ⇒ 21x – 18 = 9x – 6 ⇒ 12x = 12 ∴ x = 1 ∴ 5 years from now, A’s age = 7x + 5 = 7 + 5 = 12 years B’s age = 9x + 5 = 14 years ∴ Required ratio = 12/14 = 6:7
198 + 105 - 215 = ?
The income of a person is Rs.15000 and his expenditure is Rs.12000. In the next year his income and expenditure is increased by 8% and 13% respectively....
255 × 8 + 386 × 5 =? % of 7940
? = 15% of 2400 + 140% of 4200 – 12 3
Evaluate:
√729 + √49 - √16 + 1/√64
What will be the value of the following expression?
0.04 ÷0.002 × 0.05 × 50
3.2% of 500 × 2.4% of ? = 288