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Mathematics Mcqs

A man donated 5 % of his income to a charitable organization and deposited 20 % of the remainder in a bank. If he now has Rs. 1919 left, what is his income?

Mathematics Mcqs, Percentage Mcqs /
A man donated 5 % of his income to a charitable organization and deposited 20 % of the remainder in a bank. If he now has Rs. 1919 left, what is his income?

A. Rs. 2558. 60
B. Rs. 2525
C. Rs. 2500
D. Rs. 2300
Let his income be Rs. x.
Then X – 5 % of x – 20 % of 95 % of x = 1919
or x – x/20 – (20×95×x)/(100 × 100) = 1919
or x – x/20 – 19x/100 = 1919
or 100x – 5x – 19x = 191900
X = 191900/76= 2525

A man donated 5 % of his income to a charitable organization and deposited 20 % of the remainder in a bank. If he now has Rs. 1919 left, what is his income? Read More »

Mathematics Mcqs, Percentage Mcqs

Raees credits 15 % of his salary in this fixed deposit account and spends 30 % of the remaining amount on groceries if the cash in hand is Rs. 2380, what is his salary?

Mathematics Mcqs, Percentage Mcqs /
Raees credits 15 % of his salary in this fixed deposit account and spends 30 % of the remaining amount on groceries if the cash in hand is Rs. 2380, what is his salary?

A. Rs. 3500
B. Rs. 4000
C. Rs. 4500
D. Rs. 5000
Let salary be Rs. x.
Then, x – 15 % of x – 30 % of 85 % of x = 2380
or x – 15x/100 – (30×85×x)/(100×100) = 2380
or 200 x – 30 x – 51 x = 2380 X 200
or 119 x = 2380 X 200
or x = (2380×200)/119 = 4000

Raees credits 15 % of his salary in this fixed deposit account and spends 30 % of the remaining amount on groceries if the cash in hand is Rs. 2380, what is his salary? Read More »

Mathematics Mcqs, Percentage Mcqs

The income of a broker remains uncharged though the rate of commission is increased from 4 % to 5 % the percentage of a slump in business is_______?

Mathematics Mcqs, Percentage Mcqs /
The income of a broker remains uncharged though the rate of commission is increased from 4 % to 5 % the percentage of a slump in business is_______?

A. 8 %
B. 1 %
C. 20 %
D. 80 %
Explanation:
Let the business value changes from x to y.
Then 4 % of x = 5 % of y of 4/100 × x = 5/100 × y
or y = 4/5 x.
Change in business = (x – 4/5 x) = 4/5 x.
Percentage slump in business
= (1/5 x ×1/x × 100)% = 20%

The income of a broker remains uncharged though the rate of commission is increased from 4 % to 5 % the percentage of a slump in business is_______? Read More »

Mathematics Mcqs, Percentage Mcqs

The Price of an article is cut by 10%. To restore it to the former value, the new price must be increased by_______?

Mathematics Mcqs, Percentage Mcqs /
The Price of an article is cut by 10%. To restore it to the former value, the new price must be increased by_______?

A. 10 %
B. 9 1/11 %
C. 11 1/9 %
D. 11%
Let original price = Rs. 100
Then new price = Rs. 90
Increase on Rs. 90 = Rs. 10
Increase % = [10/90 X 100] % = 11 1/9 %

The Price of an article is cut by 10%. To restore it to the former value, the new price must be increased by_______? Read More »

Mathematics Mcqs, Percentage Mcqs

What percentage of numbers from 1 to 70 have squares that end in the digit 1?

Mathematics Mcqs, Percentage Mcqs /
What percentage of numbers from 1 to 70 have squares that end in the digit 1?

A. 1
B. 14
C. 20
D. 21
Clearly, the numbers which have 1 or 9 in the unit’s digit, have squares that end in the digit 1. Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69.
Number of such numbers = 14.
Required percentage = (14/70 * 100) = 20%

What percentage of numbers from 1 to 70 have squares that end in the digit 1? Read More »

Mathematics Mcqs, Percentage Mcqs

The temperature at noon in LHR ,Pakistan was 6 deg on Monday ,4deg on Tuesday,2deg below zero on Wednesday,3deg below zero on Thursday, 0 deg on Friday ,3 deg on Saturday ,and 6 deg on Sunday. What was the average temperature at noon for the week ?

Average Mcqs, Mathematics Mcqs /
The temperature at noon in LHR ,Pakistan was 6 deg on Monday ,4deg on Tuesday,2deg below zero on Wednesday,3deg below zero on Thursday, 0 deg on Friday ,3 deg on Saturday ,and 6 deg on Sunday. What was the average temperature at noon for the week ?A. 14 deg
B. -2 deg
C. 2 deg
D. 7 deg

 

The temperature at noon in LHR ,Pakistan was 6 deg on Monday ,4deg on Tuesday,2deg below zero on Wednesday,3deg below zero on Thursday, 0 deg on Friday ,3 deg on Saturday ,and 6 deg on Sunday. What was the average temperature at noon for the week ? Read More »

Average Mcqs, Mathematics Mcqs