MathGenius Africa Quiz 01 - Grade 7

Each of the diagonals of a rectangular plot is 50m. If one side of the plot measures 14m, what is the area of the plot?

Answer explanation

672 sq.m

How many fencing posts spaced 4m apart are required to fence a rectangular plot measuring 364m by 116m?

Answer explanation

240 fencing posts

Kahiga bought the following items: 4 packets of wheat flour at sh 1350 each, 1.5kg of tomatoes at sh 800 per kg, 2kg of rice for sh 3400 and 2 loaves of bread at sh 680 each. If he had sh 16000, how much money was he left with?

Answer explanation

sh 4640

Four numbers are given as follows: 957321, 935721, 971351, 923571. By how much is the largest number more than the smallest number?

Answer explanation

47780

Waswa bought a DVD deck for sh 81000 after getting a discount of 10%. What was the marked price of the DVD?

Answer explanation

sh 90000

Jane and Awar shared the land such that Jane got 3/4 of the land. What was the ratio of Awar's share to Jane's share?

Answer explanation

1:3

Tunu was to be paid sh 112500 for delivering 25 boxes of chalk to a school. If 4 boxes were not delivered, how much was he paid?

Answer explanation

sh 94500

Ben has the following amount of money in his savings box: 12 notes with a value of sh 1000 each, 20 notes with a value of sh 2000 each, 14 notes with a value of sh 5000 and 10 notes with a value of 10000 each. He then changed the money into fifty-shilling coins. How many coins altogether did he get?

Answer explanation

444 coins

A boarding school uses 50 decilitres of milk daily. How many litres of milk did it use in January, February and March 2025 if the school was in session all those months?

Answer explanation

450 litres