A fruit seller bought 40 kg of mangoes at rs75 per kg.4 kg of mangoes were bad and not fit for selling. he sold the remaining mangoes making 12.5% profit. at what price did he sell the mangoes

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?