A. 40
B. 50
C. 60
D. 80
Explanation:
Let the number be x. Then,
50% of x – 35% of x = 12
50/100 x – 35/100 x = 12
x = (12 * 100)/15 = 80.
A. Rs. 5000
B. Rs. 10000
C. Rs. 12000
D. Rs. 16000
Explanation:
Labelled price be Rs. 100
S.P in 1st case = Rs. 80
S.P in 2nd case = Rs. 75
Saving is Rs. 5 labelled price = Rs. 100
Saving is Rs. 500 labelled price
= Rs. (100/5 × 500) = Rs. 10000
A. 7 years
B. 10 years
C. 15 years
D. 20 years
Explanation:
P(1 + R/100)5 = 2P => (1 + R/100)5 = 2
Let P(1 + R/100)n = 8P
=> (1 + R/100)n = 8 = 23 = {(1 + R/100)5}3
=> (1 + R/100)n = (1 + R/100)15 => n = 15 Required time = 15 years.
A. 18 3/4 %
B. 20 %
C. 16 3/4 %
D. 19 %
Explanation:
Required % = (9/48 × 100)% = 75/4 % = 18 ¾ %
A. 1
B. 5
C. 10
D. 25
10 workers make 10 tables in 10 days. 1 worker makes 1 table in 10 days. Similarly, 5 workers can make 5 tables in 10 days.
A. 3
B. 6
C. 24
D. 120
Explanation:
There are five letters in the given word.
Consider 5 blanks ….
The first blank and last blank must be filled with N and A all the remaining three blanks can be filled with the remaining 3 letters in 3! ways.
The number of words = 3! = 6.
A. 17cm
B. 20cm
C. 23cm
D. 26cm