Read posting **Sarin and the million numbers** and **Hairu and the numbers **to understand the mathematics concept of numbers.

Read also posting on **Sarin learns concept of ratio in school** and **Sarin learns the concept of Fraction (mathematics concept)** to understand Ratio and Fraction.

Upper primary school mathematics question UPQ68

UPQ68-1. *What is the missing number on the line? *

* 108 : _____ = 9 : 8*

* (1) 109 *

* (2) 96 *

* (3) 86 *

* (4) 72*

UPQ68-2. *Hairu is 3/8 as old as Sarin. Find the ratio of Sarin’s age to their total **age.** *

* **(1) 3 : 8 *

* (2) 8 : 3 *

* (3) 3 : 11 *

* (4) 8 : 11*

UPQ68-3. *The ratio of Hairu’s mass to Sarin’s mass is 7 : 10. If Sarin is 12 kg **heavier than Hairu, what is their *

* total mass? *

* (1) 28 kg *

* (2) 40 kg *

* (3) 67 kg *

* (4) 68 kg*

UPQ68-4. * Fatimah **bought a pizza. She ate 2/5 of it and shared the remaining portion of **the pizza equally with *

* her 2 **brothers. What fraction of the pizza did each of **her brother eat?*

Solutions

UPQ68-1. *What is the missing number on the line? *

* 108 : _____ = 9 : 8*

* (1) 109 *

* (2) 96 *

* (3) 86 *

* (4) 72*

108 = 9 × 12

9 : 8 = 9 × 12 : 8 × 12 = 108 : 96

108 : 96 = 9 : 8

UPQ68-2. *Hairu is 3/8 as old as Sarin. Find the ratio of Sarin’s age to their total **age.** *

* **(1) 3 : 8 *

* (2) 8 : 3 *

* (3) 3 : 11 *

* (4) 8 : 11*

Their total age = 3 + 8 = 11 units

Sarin’s age = 8 units

The ratio of Sarin’s age to their total age = 8 : 11

UPQ68-3. *The ratio of Hairu’s mass to Sarin’s mass is 7 : 10. If Sarin is 12 kg **heavier than Hairu, what is their *

* total mass? *

* (1) 28 kg *

* (2) 40 kg *

* (3) 67 kg *

* (4) 68 kg*

3 units = 12kg

1 unit = 4kg

Total mass = 17 × 4 = 68kg

UPQ68-4. *Fatimah bought a pizza. She ate 2/5 of it and shared the remaining portion of **the pizza equally with *

* her 2 **brothers. What fraction of the pizza did each of **her brother eat?*

Each of her brother ate 1/5 fraction of the pizza.

why is it uncategorised? maybe you can put: math question. 🙂

It is in Upper primary school category