Your cart is empty.
Practice each question, then open the answer or worked solution.
The sum which will earn a simple interest of ₹ 126 in 2 years at 14% per annum is
(a) ₹ 394 (b) ₹ 395 (c) ₹ 450 (d) ₹ 540
Solution:-
(c) ₹ 450
From the question it is given that,
SI = ₹ 126
Time = 2 years
Rate = 14%
Then, we know the formula of Simple interest I = (P × R × T)/100
126 = (P × 14 × 2)/100
P = 12600/(14 × 2)
P = ₹ 450
The per cent that represents the unshaded region in the figure
(a) 75% (b) 50% (c) 40% (d) 60%
Solution:-
(c) 40%
From the figure,
Total number of parts in the given figure = 10 × 10 = 100
Out of 100 parts 60 parts are shaded.
So, unshaded parts = 100 – 60 = 40 parts
Then percentage of unshaded parts = (40/100) × 100
= 0.4 × 100
= 40%
The per cent that represents the shaded region in the figure is
(a) 36% (b) 64% (c) 27% (d) 48%
Solution:-
(a) 36%
From the figure,
Total number of parts in the given figure = 10 × 10 = 100
Out of 100 parts 36 parts are shaded.
Then percentage of shaded parts = (36/100) × 100
= 0.36 × 100
= 36%
In each of the questions 24 to 59, fill in the blanks to make the statements true.
2 : 3 = ________ %
Solution:-
2: 3 =
%
= (2/3) × 100
=
%
18¾% = :
Solution:-
18¾% = 3 : 16
18¾% = 75/4 %
= (75/4) × (1/100)
= 3: 16
30% of ₹ 360 = ________.
Solution:-
30% of ₹ 360 = ₹ 108.
It can be written as = (30/100) × 360
= 10800/100
= ₹ 108
120 % of 50 km = ________.
Solution:-
120 % of 50 km = 60 km.
It can be written as = (120/100) × 50
= 6000/100
= 60 km
2.5 = ________%
Solution:-
2.5 = 250 %
2.5 = 2.5 × 100
= 250%
(8/5) = %
Solution:-
(8/5) = 160 %.
(8/5) is written in percentage as = (8/5) × 100
= 8 × 20
= 160 %
A _______ with its denominator 100 is called a per cent.
Solution:-
A fraction with its denominator 100 is called a per cent.