40%of100-20%of300 is equal to:
20
16
140
64
Given 40%of100-20%of300
=40%of100-20100×300
=40%of100-60
=40%of40
=40100×40
=4×4=16.
So, the option B is correct.
Question 40
In ΔABC, ∠A=100∘, AD bisects ∠A and AD⊥BC. Then, ∠B is equal to
a) 80∘ b) 20∘ c) 40∘ d) 30∘
Question 19
40% of [100 - 20% of 300] is equal to (a) 20 (b) 16 (c) 140 (d) 64
In a class, following were the marks obtained by 20 students in a maths test. 20, 40 ,50 ,20 , 60 , 50 ,100, 20, 50, 100, 40, 60, 100, 50, 20 ,60, 100 , 50, 40 , 20. Make a frequency distribution table. [2 MARKS]