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Let speed of train is ‘x’ m/s So, length of train = 24 × x = 24x metres And, 24x + 234 = 1.5 × x × 42 Or, 39x = 234 Or, x = 6 m/s So, length of train = 24 × 6 = 144 metres Desired time = (144 + 126)/6 = 45 seconds
? (1/2) = 236 – 25 × 18/2 + 396 ÷ 22
[(40)2 ÷ 32 × 4] ÷ 50 = ?
The value of 5³ × 5⁴ × 5² = ?
(65% of 120) = 25% of ? - 22
36 × 15 + 20% 1250 = ? + 296
(350/?) = 23 + 33
60 % of 250 + √169 * 7 = ?² + 45 % of 160
560 ÷ 14 × 3 – 25 = ?
{17 + √2601}/(? + 2) = 17