Question

7. Which of these products would have 3 at the ones place?
a) 91 × 87 × 74 × 33

b) 93 × 73 × 57 × 30

c) 93 × 73 × 63 ×43

d) 97 × 87 × 51 × 47

Answer 1

Answer:

d

Step-by-step explanation:

97 x 87 x 74 x 33 = .....3

Answer 2

d) should be the answer.....



EXPLANATION


Just multiply the no. in once digit...

a) 1 * 7 * 4 * 3

= 28 * 3 = 8 * 3 = 4....

{ We only need the once digit }

b) U can tell that the last digit is 0

c) 3 * 3 * 3 * 3 = 81

d) 7 * 7 * 1 * 7

= 343.....