82.3 × 644.7 × 723.4 × 815.85 = 72?
82.3 × 644.7 × 723.4 × 815.85 = 72? 82.3 × 89.4 × (72)3.4 × 911.7 = 72? 811.7 × 911.7 × (72)3.4 = 72? 7211.7 × 723.4 = 72? 7215.1 = 72? ? = 15.1
31.98% of 224.99 = 24.98% of ? + 9.91% of 499.99
420.11 ÷ 13.98 × 5.14 – 124.9 = √?
41.97 × 5.12 ÷ 2.99 + 49.89 = ?× 1.99
630.11 ÷ 20.98 × 5.14 – 125.9 = √?
A motor boat goes downstream from point A to B ,which is 36 km away from point A, and then returns to A. If actual speed of the boat in still water is 7...
(98.999)2 - (9.9)2 - (14.9)2 = ?
(2744)1/3 × 10.11 × 5.97 ÷ 14.32 = ?+ 15.022
P spends 20% of his monthly income in travelling. He spends 25% of his monthly income on household expenses and spends 15% of his monthly income on fami...
{(84.04% of 649.95 + 27.92 × 13.13) – 21.11 × ?} = 763.35
