Question

(A) Multiple choice questions
1) If two quantities a and b vary directly with each other, then
a) a xb remains constant 61 a/b remainis constant
c) a + b remains constant d) a - b remains constant
2) If 3 boys can finish a work in 9 days, how long will 9 boys take to finish the same work
a) 4 days
• b) 9 days
e}3 days
d) 2 days
3) If the cost of 7 notebooks is Rs 42.35, then how many notebooks can be bought for Rs 112.80
b) 10
a) 6
c)16
d) None of these
4) x and y vary inversely with each other. when x is 6 and y is 5 then the value of constant of
variation is
a) 3
b) 30
c) 20
d) 1.2
5) a and b vary directly with each other. When a is 10 and bis 35, then the value of constant of
variation is
a) 217
b)7/2
c) 10
d) None of these​

Answer 1

Answer:

1) correct answer is Option c

2) correct answer is Option d

3) correct answer is Option a

4) correct answer is Option b

5) correct answer is Option c

Step-by-step explanation:

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