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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

Three years ago, Malathi’s age at that time was thrice of Roshni’s age at that time. The respective Ratio between Roshni’s age six years hence & Malathi’s age eight years hence, will be 3 : 7. What will be the Roshni’s age two years hence?

Correct

Answer – 1. 20
Explanation:
Let present age of Roshni = (x+3) years
Present age of Malathi = (3x +3) years
[(x+3)+6] /[(3x+3)+8] = 3/7 ∴ x= 15 years
∴ Roshni’s age two years hence = (x +3)+2 = 20 years

Incorrect

Answer – 1. 20
Explanation:
Let present age of Roshni = (x+3) years
Present age of Malathi = (3x +3) years
[(x+3)+6] /[(3x+3)+8] = 3/7 ∴ x= 15 years
∴ Roshni’s age two years hence = (x +3)+2 = 20 years

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

Manoj invested a sum of money for ‘X” years in a Savings Scheme offering SI . The amount received after “X” years was twice the sum of money invested in the scheme. What will be the amount received for the scheme, when a sum of Rs 5450 is invested for “2X” years?

Correct

Answer – 4. Rs 16350 Explanation:
R =100/T
T =2T years
SI * 100 = 5450 *100/T * 2T
SI = 10900
Amount = 10900+5450= 16350

Incorrect

Answer – 4. Rs 16350 Explanation:
R =100/T
T =2T years
SI * 100 = 5450 *100/T * 2T
SI = 10900
Amount = 10900+5450= 16350

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Every month Mr. Surendar spends 24% of his monthly income in paying EMI and 30% on shopping. Out of the remaining, he invests in fixed deposit and respective ratio of 9:7. If in a year, he deposited a total of Rs 124200 in fixed deposit, how much did he pay as EMI in a Year?

Correct

Answer – 5. Rs 115200 Explanation :
Let the monthly income of Surendar = Rs X
124200= X *(100-24-30)/100 * 9/16 * 12
X=Rs 40000
So Surendar spent on paying EMI in a year = 40000 * 24/100*12= Rs 115200

Incorrect

Answer – 5. Rs 115200 Explanation :
Let the monthly income of Surendar = Rs X
124200= X *(100-24-30)/100 * 9/16 * 12
X=Rs 40000
So Surendar spent on paying EMI in a year = 40000 * 24/100*12= Rs 115200

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

If the percentage profit is equal to the labeled price and when the clock is sold for Rs 100 more than the labeled price, the percentage profit is increased by 5% . Find the labeled price of the clock?

Correct

Answer – 1. 2000 Explanation :
Let the labeled price – Rs X
The selling price =X + 100
Now, X + 100= (105X)/100
X=2000

Incorrect

Answer – 1. 2000 Explanation :
Let the labeled price – Rs X
The selling price =X + 100
Now, X + 100= (105X)/100
X=2000

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Ajay, Balaji, Charles started a business with investments of Rs 1500, Rs 550, Rs 2400 respectively. After 8 months from the start of the business, Ajay & Charles left & Balaji invested an additional amount of Rs 450. If the difference between the share in annual profit received by Balaji & the total annual profit was Rs 13000, what was the total annual profit received?

Correct

Answer – 1. 16500 Explanation:
Ratio of investments of Ajay, Balaji, Charles
=(1500 * 8 ): (550 *8 + 1000 * 4) : (2400 *8)
=10 :7 :16
Let total profit Rs X
Balaji’s share = 7x/33
x-7x/33 = 13000
x= Rs 16500

Incorrect

Answer – 1. 16500 Explanation:
Ratio of investments of Ajay, Balaji, Charles
=(1500 * 8 ): (550 *8 + 1000 * 4) : (2400 *8)
=10 :7 :16
Let total profit Rs X
Balaji’s share = 7x/33
x-7x/33 = 13000
x= Rs 16500

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

The perimeter of a rectangle and a square is 160 cm each. If the difference between their areas is 100 cm. Find the sides of the rectangle.

Correct

Answer – 3. 50cm, 30cm Explanation :
2(l + b) = 4a = 160
l + b = 80–(1); a = 40 => a² = 1600
a² – lb = 100; 1600 – lb =100; lb = 1500
(l – b)² = (l + b)² – 4lb
(l – b)² = 6400 – 6000;
(l – b)² = 400
l – b = 20—(2)
From (1) and (2)
2l = 100; l = 50cm; b=30cm

Incorrect

Answer – 3. 50cm, 30cm Explanation :
2(l + b) = 4a = 160
l + b = 80–(1); a = 40 => a² = 1600
a² – lb = 100; 1600 – lb =100; lb = 1500
(l – b)² = (l + b)² – 4lb
(l – b)² = 6400 – 6000;
(l – b)² = 400
l – b = 20—(2)
From (1) and (2)
2l = 100; l = 50cm; b=30cm

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

60% of 1500 = 1000 *?

Correct

Answer – 2. 0.9 Explanation:
900 = 1000 * x
x = 0.9

Incorrect

Answer – 2. 0.9 Explanation:
900 = 1000 * x
x = 0.9