Question
The product of two positive numbers is 192. If one of
the numbers is twice the other, then find the difference between the given two numbers.Solution
ATQ,
Let us assume one of the numbers is 'x'
Then, another number is = 2 × x = '2x'
So, x × 2x = 192
Or, 2x² = 192
Or, x² = 96
Or, x = 9.8 {Since the numbers are positive}
Required difference = {2 × (9.8) - 9.8} = (19.6 - 9.8) = 9.8
30.01 × √1023 + 196 = ? 2 – 287
70.008% of 399.98 + ?% of 399.999 = 80.105% of 599.998
? = 26.08 + 18.99 × 25.07
A bag contains 25 white and some black balls. If the probability of drawing a black ball from the bag is thrice that of drawing a white ball, fin...
 15.78% of (287 + 302) + 12³ = ?% of 170 + 8 × 14 + 3²Â
40 × 55.96 ÷ 7 – 20% of 699.81 + 63 = ? - (11479.50 ÷ 7)
A certain sum of money invested at R% p.a. fetches a compound interest (compounded annually) of 1620 and simple interest of Rs.1500 at the end of 2 year...
4650.12 ÷ √8648.88 + √27.08 * √1727.85 = ? – 609.10 ÷ 87.07                     Â
...(439.98 ÷ 10.99) × 23.98= ? × (23.98) 2 ÷ 47.98
29.88% of 3599.90 + 5/12 of 2399.81 – 34.81% of 1200.18 = ?