ATQ, Let the present age of Neha be 'n' years. Neha's father's age = (6n + 4) years Neha's mother's age = (6n + 4) - 8 = (6n - 4) years ATQ: (6n + 4) : (6n - 4) = 25 : 23 Or, 23 × (6n + 4) = 25 × (6n - 4) Or, 138n + 92 = 150n - 100 Or, 12n = 192 Or, 'n' = 16 Present age of Neha's father = 6 × 16 + 4 = 100 years Present age of Ria = 16 - 3 = 13 years Required sum = (100 - 5) + (13 - 5) = 95 + 8 = 103 years
(6 × √361) × 2.5 = ? + 125
√289 + √49 + 121 =?
2/9 of 5/8 of 3/25 of ? = 40
(√ 1444 ÷ 5) × 3.25 = ?
7/3 of 4/5 of 15/56 of ? = 83
2(1/3) + 2(5/6) – 1(1/2) = ? – 6(1/6)
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
2945 – 1508 + 3454 = ? + 2255
((67)32 × (67)-18/ ? = (67)⁸
√ (12+√ (12+√ (12+ ⋯ ∞ ))