X is 10 ft tall, and he notices that he casts a shadow that's 3 ft long. He then measures that the shadow cast by his school building is 30 ft long. How tall is the building?
Length of 3 feet shadow =10 feet Length of 1-foot shadow =10/3 Now 30 feet shadow = (10/3) ×30 =100feet.
2, 13, 27, 44, ?, 87
96 48 24 ? 6 3
...16 25 36 49 64 ?
√(10198 )× √(7220 )÷ 16.69 + 2010.375= ?
123, 130, 116, ?, 109, 144
13, 28, ?, 118, 238, 478
216, 81, 297, 378, ?, 1035, 1728
250, 279, 311, 349, 396, ?
3.6 × 1.5 + 8.4 × 2.5 – 9.2 × 3.5 = ? – 9.2 × 4.4
56, 27, 14.5, 6.25, ?, 1.0625
