Equations

George is 2.6 kg heavier than John. John weighs 30.5 kg. What is the weight of George?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

The upper base of cardboard sheet in the shape of a trapezium is 15.6 cm. Its height is 25 cm and its area is 375 cm². What is the lower base of the cardboard sheet in cm?

Mathematical Equivalence

ON

A stone has a volume of 200 cm³. It is put into a tank of water with base area 10 cm x 5 cm. What is the rise in water level?

Mathematical Equivalence

ON

Paul pays 125.4 dollars in total to buy 3 boxes of biscuits and 1 pack of lemon tea that costs 35.2 dollars. Find the cost of each box of biscuits.

Mathematical Equivalence

ON

There are some red balls and green balls in a bag. 40% of them are red and there are 60 green balls. Find the total number of balls in the bag.

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Nick got an average mark of 86.5 in 4 test. He got the same mark in test 1 and test 2 (which is 90). He got 76 in the 3rd test. Find the mark in the 4th test.

Mathematical Equivalence

ON

A motorcycle and a car start moving in the same directions from the the same place at the same time. The speed of the motorcycle is 75 km/h. after 2 hours, the two vehicles are 40 km apart. The car is ahead of the motorcycle. Find the speed of the car.

Mathematical Equivalence

ON

The average capacity of 4 cups is 240 mL. The capacity of 3 of them is 180 mL, 260 mL and 210 mL respectively. Find the capacity of the remaining cup.

What should be the 'let x' sentence?

• Let x be the capacity of the remaining cup.

• Let x mL be the capacity of the remaining cup.

• Let x be the remaining cup.