exam Maths Puzzle Numerical Ability

in a burger chain customers who use mustard are 80%, who use ketchup are 75% and who use both are 65%. what is the probability that the customers comming in the shop will use mustard, ketchup or both?

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exam Other Question
the sum of the ages of petra and her mother is 45. her mother is 9 years more than twice as old as petra. how old are petra and her mother The sum of two consecutive integers is 145. Find the two integers.

Rose’s garden is in the shape of a trapezoid. If the height of the trapezoid
is 16 m, one base is 20 m, and the area is 224 m2, find the length of the other base.