exam Maths Puzzle Numerical Ability

In a race , Mary is 50 ft. in front of Susie after 10 seconds. How fast can Mary run if Susie runs 20 ft per second?

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Please can someone help me with this? Three consecutive integers are such that the first plus one-half the second plus seven less than twice the third is 2101. What are the integers? Q1. Please help me solve this Transposing question C= V2C1/V1-V2 to make "C" the subject.

Q2.Please help me solve this question - The power p developed in an electrical circui