exam Maths Puzzle Numerical Ability

choosing a local phone number if the exchange is 234 and each of the four remaining digits is different.

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exam Other Question

a concrete slab requires between 10 and 12 yd cubed of concrete. if 2.5 yd cubed of concrete can be poured each hour, how long will it take to pour the slab? Kim weighs 72 kg and eddie weighs 60 kg . Kime is sitting 2 m from fulcrum of a seesaw . How far from kim should eddie sit to balance the seesaw?