Question

Women and 10 men earn 2.375 in one day.
EXERCISE 9.1
1. Which of the following show direct variation?
(a) Height of a child (x) and his weight (y) as he grows
(b) Distance travelled (x) and time taken (v), if a car is not moving at a uniform speed
(c) Wages of a worker (x) and the number of hours of work (y)
(d) The number of students (x) and the fees paid by them (v)
(e) Number of rainy days (x) and the amount of rainfall on those days (v)
2. In which of the following is x in direct variation with y?
5
8
9
11
(b)
х
8
16
20
32
60
y
15 24 27
33
y у
2
4
5
8
15​

Answer 1

Answer:

a,c,d show direct variation

bro i am not getting option of question 2nd

Answer 2

Step-by-step explanation:

1 Introduction

Mohan prepares tea for himself and his sister. He uses 300 mL of water, 2 spoons of sugar, 1 spoon of tea leaves and 50 mL of milk. How much quantity of each item will he need, if he has to make tea for five persons?

If two students take 20 minutes to arrange chairs for an assembly, then how much time would five students take to do the same job? We come across many such situations in our day-to-day life, where we need to see variation in one quantity bringing in variation in the other quantity.