alleryThe ratio of boys to girls in a club is 2:5. There are 14 boys. How many girls are there?
A28
B30
C35
D20
Answer & Solution
Correct answer: C. 35
1. Boys 14 = 2 x 7, so multiply every term by 7.
2. Girls = 5 x 7 = 35.
3. 28 comes from multiplying 14 by 2 instead.
_Source: Wikipedia, Ratio, Proportions and percentage ratios_
Keep practising Ratio
Browse all Ratio questions for CTET, or explore more Mathematics topics.
Related questions
Which pair of ratios forms a proportion?For what value of x are 4, 6 and x in proportion, meaning 4:6 = 6:x?If 3:5 = x:20, what is x?A speed of 60 km/h is held steady. How far does the car go in 2.5 hours?A mix uses cement : sand = 1:2. If 6 bags of cement are used, how many bags of sand are neMilk and water are mixed 3:2 to make 20 litres. How many litres of water are in it?Rs 900 is shared in the ratio 4:5. What is the bigger share?A model has a scale of 1:100. A wall is 5 cm long on the model. How long is the real wall?