Average of present age of A and C is 29 years and C is 8 years younger than B. Ratio of present age of A to present age of B is 6:5. Find present age of B.
Let present age of A and B be 6x and 5x years respectively. Total age of A and C together = 29 × 2 = 58 years Therefore, present age of C = 5x - 8 ATQ, => 5x - 8 + 6x = 58 => x = 6 Present age of B = 5 × 6 = 30 years
4567.89 - 567.89 - 678.89 = ?
Find the unknown value of' x' in the proportion $$(5x + 1) : 3 = (x + 3) : 7
[(√ 529) + 67] x 5 = ?
5760 ÷ 45 × 15 = ?
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
36 x 3.6 ÷ 0.5 ÷ ? = 64
1780 – 60 ÷ 4 x 80 = ?
If √3n 729, then the value of n is equal to:
{(80% of 650 + 25 × 12) – 20 × ?} = 760
{(522 – 482 ) ÷ (27 + 73)} × 35 = ?% of 17
