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Present age of ‘C’ = 0.4 × 50 = 20 years 4 years ago from now, age of ‘C’ = 20 – 4 = 16 years 6 years hence from now, age of ‘B’ = 16 × (7/4) = 28 years Present age of ‘B’ = 28 – 6 = 22 years
12 × 6 + 24 – 36 of 5 + 160 = ?
√1444 + √729 – √2116 = ?
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
180 ÷ 3 of 2 = 102 – ?
2850 ÷ 2.5 - ? × 42 = 300
4261 + 8234 + 2913 + 8217 + 6283 + 4172 =?
72 + 122 - 25% of 600 = ?