- The selling price and cost price of an table differs by Rs.4000. What is the selling price in case the profit percentage is 20%?
20,00012,00025,00022,00021,000Option A

SP – CP = 4000

1.2x – x = 4000

⇒0.2x = 4000

⇒x = 20,000 - If a person sells his car at 8% profit against 8% loss, then he could had earned Rs12000 more. What is the cost price of car?

Rs.85000Rs.75000Rs.45000Rs.55000Rs.65000Option B

Let Cost Price (CP) = x

Then Selling Price(SP) if he sells at profit = x(1+8%) = 1.08x

and SP, if he sells at loss = x(1-8%) = 0.92%

Given, 1.08%-0.92% = Rs12000

0.16x = Rs.12000

⇒x = Rs.75000 - Find the amount of water which should be added to 60% solution of citric acid to make it a 40% solution?

35cc45cc40cc50cc60ccOption D

Concentration of citric acid = 60%

So in a 100cc, citric acid = 80cc and water = 40cc

Let x be the amount of water added to make concentration of 40%

⇒60/(100+x) = 40/100

⇒ 60/(100+x) = 2/5

∴ x = 50cc - A bangle contains 20mg copper, 20mg gold and 40mg silver.Then find out the percentage gold in the bangle?
22%20%35%25%15%Option D

Total weight of bangle = 20+20+ 40 = 80mg

Weight of gold = 20g

Percentage of tin = 20g/80g x 100

=25% - If the price of petrol is increased by 10% and subsequently by 20%. If the original price was Rs70 per litre then what is then the final price per litre?

Rs. 92.4Rs. 96.4Rs. 95.4Rs. 72.4Rs. 82.4Option A

Final Price = 70 x (1 + 10/100) x (1 + 20/100)

= Rs. 92.4 - The price of a onion is increased by 40%. If the original price is Rs. 300 per kg , what is the final price of the onion?
Rs.120Rs.420Rs.220Rs.320Rs.200Option C

Final Price = Initial price + Initial price x 40/100

= Initial price x (1+40/100)

= Rs.300x(1.4)

= Rs.420 - If 15% of a number is 4500, then the number is

30,00050,00040,00033,00035,000Option A

Let the number be y.

Then, 15% of y = 4500

( 15 / 100 )y = 4500

y= 30,000 - 25 % of a number when added to 25 is equal to that number. What is the number?

33.335.336.337.338.3Option A

Let ‘x’ be the required number

0.25x + 25 =x

∴ 0.75x=25

∴ x=33.3 - Lavanya income is 20% more than prem’s. How much less is Prem’s income than that of Lavanya’s?

17.6%16.6%13.6%14.6%15.6%Option B

Prem’s income is less than Lavanya’s = [(20 / (100 + 20)] × 100 %

= 16.6% - The total population of a village is 3000, out of which 1500 are males. Out of every 100 males, 98 can read and write, but only 53% of the total population can do so. Find the percentage of women who can read and write.

97586Option D

Number of men who can read and write = 1500 × (98 ÷ 100) =1470Number of men and women who can read and write =3000 × (53 ÷ 100) =1590

Number of women who can read and write 1590 – 1470 = 120

Thus, out of 1500women 120 can read and write.

Required percentage = ( 120× 100) ⁄ 1500 %= 8%

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