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Work done by A in one day is four times the work done by B in one day, while the work done by B in one day is one-third of the work done by C in one day. C alone can complete the work in 16 days. In how many days can all the three together complete the work?

Correct

Explanation
According to question,
A = 4B
C =3B
A: B=4:1
B: C =1:3
Ratio of work done by A, B and C in one day
=4:1:3
C’s 1 day’s work =3 unit
C’s 16 day’s work =3 x 16 = 48 unit
Time taken by A, B and C to complete the
Work = 48/4+1+3 = 48/8
= 6 days

Incorrect

Explanation
According to question,
A = 4B
C =3B
A: B=4:1
B: C =1:3
Ratio of work done by A, B and C in one day
=4:1:3
C’s 1 day’s work =3 unit
C’s 16 day’s work =3 x 16 = 48 unit
Time taken by A, B and C to complete the
Work = 48/4+1+3 = 48/8
= 6 days

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

A profit of 25% is earned on goods when a discount of 20% is allowed on the marked price.
What profit percentage will be earned when a discount of 10% is allowed on the marked price?

Correct

Explanation
Let the marked price of goods = Rs.100/-
Selling price of goods = 100 x80/100 = Rs.80/-
Cost price of goods = 80 x 100/125= Rs.64/-
When a discount of 10% is allowed on the
Marked price of goods then selling price will be
=100 x 90 = Rs.90/-
Required profit percentage
90-64/64 * 100 = 26/64 * 100
= 325/8 = 40 5/8%

Incorrect

Explanation
Let the marked price of goods = Rs.100/-
Selling price of goods = 100 x80/100 = Rs.80/-
Cost price of goods = 80 x 100/125= Rs.64/-
When a discount of 10% is allowed on the
Marked price of goods then selling price will be
=100 x 90 = Rs.90/-
Required profit percentage
90-64/64 * 100 = 26/64 * 100
= 325/8 = 40 5/8%

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

The compound interest on a certain sum for 2 years at 20% per annum is Rs.880/-. The simple
Interest on the same sum for double the time at half
The rate percent per annum is:

Correct

Incorrect

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Suhas decided to donate 15% of his salary. On The day of donation he changed his mind and donated 1,650/- which was 11/15 of what he had decided to donate earlier. How much is Suhas’ salary ?

Correct

Explanation
Let Suhas’ salary =Rs. x
According to question,
X ×15/100×11/15 = 1650
x = Rs.15, 000/-

Incorrect

Explanation
Let Suhas’ salary =Rs. x
According to question,
X ×15/100×11/15 = 1650
x = Rs.15, 000/-

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

An amount of Rs. 6996 is divided among Raju, Babu and Shyam in such a way that if their shares Be reduced by Rs. 8, Rs. I2 and Rs. 16 respectively, the remainders shall be in the ratio of 7: 8: 9. Find The share of Babu.

Correct

Explanation
The amount which is divided among them = 6996
– (8 + 12+ 16) = 6996 – 36 = 6960
Now, Babu’s share = 6960 x (8/24) +12
= 2320 + 12 = Rs. 2332

Incorrect

Explanation
The amount which is divided among them = 6996
– (8 + 12+ 16) = 6996 – 36 = 6960
Now, Babu’s share = 6960 x (8/24) +12
= 2320 + 12 = Rs. 2332