Question

1.
Find the product:
5 3
(a) X
8 10
(
b
)
11
x24
12
4
C
)
*12
2
2- X7
(e
(d)
6
(d) 3-4
7 3
15
5 4
9 7
2.
Find :
2
(b) 280f
9
of 20 kg
20
of 18 cm
(a) - of 27
3
1
5
(e)
of an year
(0)
7
of a month
10
(d)
of an hour
4
6
1
2
3. Simplify:
2
(a) 2 = x2
3
(b)
14 35 34
x x
25 51 49
2
(c) 2-3-X3
9 3 5
x3.
6
7
3​

Answer 1

Answer:

Given

Step-by-step explanation:

cuemath_logo

Find the product:

(i) 9/2 × (-7/4) (ii) 3/10 × (- 9)

(iii) -6/5 × 9/11 (iv) 3/7 × (-2/5)

(v) 3/11 × 2/5 (vi) 3/(-5)× -5/3

Solution:

We will be finding the product of numerator and denominator to get the results of the given products.

(i) 9/2 × (- 7/4) = [(9 × (- 7)]/(2 × 4) = - 63/8

(ii) 3/10 × (- 9) = (3/10) × (- 9/1) = [(3 × (- 9)]/(10) = - 27/10

(iii) - 6/5 × 9/11 = (- 6 × 9)/(5 × 11)= - 54/55

(iv) 3/7 × (-2/5) = [3 × (- 2)]/(7 × 5) = - 6/35

(v) 3/11 × 2/5 = (3 × 2)/(11 × 5) = 6/55

(vi) 3/(- 5) × (- 5/ 3)= [3 × (- 5)]/(- 5 × 3)= -15/(-15) = 1