exam Maths Puzzle Numerical Ability

The smaller of two number is two-thirds of the larger, & the sum of their reciprocals is 1/6. What are the numbers?

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exam Other Question

A mature gorilla weighs 400lbs and stands 5 ft tall, its 2 feet have a combined area of about 1 ft squared.

Give an estimate of the gorilla's weight when it was half as tall
7 square root with 3(cubed) 2 - 5 square root 3(cubed) 250