Fill in the blanks.
(i)
% of Rs.1200 = ……..
(ii) 240 mL is……% of 3 L.
(iii) If
% of 35 is 42, then
=……..
(iv)
(v) 120 = (……)% of 80.
(i) 90
% of Rs.1200 = (15/2) % of Rs.1200
= 15/2 × 1/100 × 1200
= 15/2 × 12
= 90
∴ Rs.90
(ii) 8
240 mL = (240/1000) L
Now,
Percentage = (240/1000 × 1/3 × 100) %
= (240/10 × 1/3) %
= (80/10) %
= 8%
(iii) 120
X% of 35 = 42
⇒ 35 × X/100 = 42
⇒ 35X/100 = 42
⇒ X = 42 × 100/35
⇒ X = 6 × 100/5
⇒ X = 120
(iv) 240
12/5 = (12/5 × 100) %
= (12 × 20) %
= 240%
(v) 150
Let the number = Z
∴ 120 = Z% of 80
⇒ 120 = 80 × Z/100
⇒ Z = 120 × 100/80
⇒ Z = 120 × 5/4
⇒ Z = 150
13