Ahmad earned Rs. 45,696/-in a year. What is the average monthly income?
A. 3,508
B. 2,888
C. 3,656
D. 3,808
Answer
Correct Answer: D. 3,808
Detail About MCQs
45696 / 12 = 3,808
Rashid buys 3 books for Rs.16 each and four books for Rs. 23 each. What will be the average price of the books?
A. 24
B. 18
C. 20
D. 22
Answer
Correct Answer: C. 20
Detail About MCQs
Total Books: 7
AVG formula = Sum of all books / Total Books
AVG of books = 16 + 16 + 16 + 23 + 23 + 23 + 23 / 7
= 140/7 = 20 ANS
If 7 x =1/(3+4), then the value of X is:
A. -3
B. 3
C. 1/3
D. 1/7
Answer
Correct Answer: A. -3
A bookseller sold a book for Rs. 60/- to make a profit of 20%. In order to earn a profit of 10%, he should have sold it for:
A. 55
B. 50
C. 65.5
D. 70
Answer
Correct Answer: A. 55
Solution
Given Formula
SP = Sale price
CP = Cost price
SP = [(100 + Gain%) / 100] x CP
60 = [ ( 100+20 ) /100 ] x CP
⇒ CP = 50
To earn 10% profit, use
SP = [(100 + Gain%) / 100] x CP
SP = [ (100 +10 )/100] x 50
by solving this
SP = 55
Ahmad earned Rs. 45,696/-in a year. What is the average monthly income?
A. 3,508
B. 2,888
C. 3,656
D. 3,808
Answer
Correct Answer: D. 3,808
Solution
45696 / 12 = 3,808
A man spends Rs. 3,300/-. This was 75% of his monthly income. His monthly income is ____.
A. 4,000
B. 4,400
C. 4,500
D. 3,500
Answer
Correct Answer: B. 4,400
25% of 30% of 45% is equal to _____.
A. 0.035
B. 0.0235
C. 0.0525
D. 0.03375
Answer
Correct Answer: D. 0.03375
Solution
(25/100) * (30/100) * (45/100)
1/4 * 3/10 * 9/20
27/800 = 0.03375
What will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is Rs. 58?
A. Rs. 3154
B. Rs. 3748
C. Rs. 3847
D. Rs. 3944
Answer
Correct Answer: D. Rs. 3944
Solution
Let the side of the square plot be ‘a’ ft.
Given area of the plot (a x a) = 289 => a = 17
Length of the fence = Perimeter of the plot = 4a = 68 ft.
Cost of building the fence = 68 x 58 = Rs. 3944.
The average monthly salary of 24 employees in an organisation is Rs. 1500. If the manager’s salary is added, then the average salary increases by Rs. 400. What is the manager’s monthly salary?
A. Rs. 8840
B. Rs. 9450
C. Rs. 11,500
D. Rs. 12,800
Answer
Correct Answer: C. Rs. 11,500
Solution
Manager’s monthly salary
= Rs. (1900 x 25 – 1500 x 24) = Rs. 11,500
The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally?
A. 4
B. 6
C. 7
D. 9
Answer
Correct Answer: A. 4
Solution
Let the number of boys in the group originally be x.
Total weight of the boys = 30x
After the boy weighing 35 kg joins the group, total weight of boys = 30x + 35
So 30x + 35 + 31(x + 1) = > x = 4.