Mettl Percentage Quiz 1

Let the initial price be P.

\frac{P(100+x)(100-x)}{100\times 100}  = P- 100

\frac{P\times x\times x} {100} = 100     -(i)

Similarly ,

\frac{(P-100)\times (400-x^2)}{400}= 2376 -(ii)

Using (i) and (ii),

P^2 - 2501 P + 2500 = 0

P= 2500 or 1

Since , P > 2376

P= 2500

The person can buy 50 oranges or 40 mangoes.

Let the price of one orange be Rs. x

Total amount the person has = Rs. 50x

40 mangoes cost 50x, So one mango costs 1.25x

10% of the total amount is retained for taxi fare = 10% of 50x = 5x

20 mangoes bought for 20 x 1.25x = 25x

Money left with Hugh Jackman = 50x – (Taxi fare) – (Mangoes cost)

= 50x – 5x – 25x = 20x

One Orange was for Rs. x, Therefore, 20 oranges can be bought with Rs. 20 x

Thus, the person bought 20 oranges.

Let Matt Damon’s salary=Rs. 10,000

 

Original hike(50%) amount=5000

Revised salary=Rs.15,000

Wrongly typed(80%) hike amount=Rs.8000

Difference=Rs. 3000

For three months=Rs.9000

Four month salary=15000-9000=Rs.6000

 

Percentage of his correct new salary will get in the fourth month= \frac{15000\times x}{1000}=6000

x=40%

Let total amount=x

Savings percentage=[100-(23+33+19+16)]%

=9%

=> x= \frac{504\times 100}{9}

=> x=5600

Amount spent on food and insurance policy together = 56% of 5600

=Rs. 3136

Assume total amount = Rs. 100

Auto fare = 15% of total amount= Rs. 15

Now the amount is Rs.85

Price of 70 oranges =Rs. 85

Price of 35 oranges= \frac{85}{70} \times 35

=Rs. 42.50

Remaining amount to buy apples=Rs. 42.50

Price of 40 apples=Rs.85

Price of x apples= Rs.42.50

x=\frac{85}{42.50} \times 40 = 20 Apples

Let the required marks be x.

According to question,

70+56+x=60% of all three subjects

70+56+x=60% 0f 400

x=240-126

x=114

 

Hence,Required Percentage = \frac{114}{200} \times 100 =57%

Age of Meryl Streep=25 years

Age of Samuel L Jackson=25% greater that Meryl Streep’s age

Required percentage decrease= \frac{25}{125}\times 100

=20%

Let his salary be Rs.100

If there is increase of 20%,then salary=Rs. 120

Then decrease by 25% = \frac{75}{100} \times 120

=Rs. 90

So percentage decrease is 10%

According to question,

\frac{30}{(100-30)\times 100}

\frac{3000}{70}

=42.85%

Let the Income be Rs.100

Saving =Rs.10

And expenditure=Rs. 90

New income=Rs.110

Saving=Rs. 11

And Expenditure=Rs.99

Percentage increase in expenditure= Rs. \frac{99-90}{90}\times 100

= Rs. \frac{9}{90}\times 100

=10%