Question
A is 3 years older than B while C is 4 years younger
than B. The ratio of age of A, 8 years hence and age of B, 6 years ago is 5:4. What was age of C, 12 years ago?Solution
Let the present age of B be x years. Aβs present age = (x + 3) years Cβs present age = (x - 4) years According to question, => [(x + 3) + 8]/(x -6) = 5/4 => x = 74 Cβs age, 12 years ago = (74 - 4) β 12 = 58 years
Evaluate: 360 Γ· [ {18 β (6Γ2)} Γ 5 ] + 72 β 33
(43)² - (28)² + (32)² = ?% of 2500
Evaluate:
β729 + β49 - β16 + 1/β64
What will come in place of (?) in the given expression.
12.5 + 7.75 - 3.6 = ?62 of 8 - 320 Γ· 4 = ?3 + 200
2(1/3) + 2(5/6) β 1(1/2) = ? β 6(1/6)
What will come in the place of question mark (?) in the given expression?
30% of 520 + 16% of 1500 = ? + 244
60% of 120 β ?% of 64 = 20% of 200
35% of 840 + 162Β = ? β 25% Γ 300
20% of 240 + 18% of 200 = ?