Model 1 Basic Concepts of C.P and S.P Practice Questions Answers Test with Solutions & More Shortcuts

Question : 11 [SSC CHSL 2014]

If selling price of an article is 1$1/3$ of cost price, find gain %.

a) 1.33%

b) 33$1/3$%

c) 25%

d) 66$2/3$%

Answer: (b)

C.P. of article = Rs.x (let)

S.P. of article = Rs.${4x}/3$

Gain = ${4x}/3 - x = {4x - 3x}/3$ = Rs.$x/3$

Gain per cent = ${x/3}/x × 100$

= $100/3 = 33{1}/3%$

Question : 12 [SSC MTS 2011]

If the cost price is 95% of the selling price, what is the profit per cent ?

a) 5%

b) 4.75%

c) 4%

d) 5.26%

Answer: (d)

If the cost price be Rs.x, then

S.P. = $100/95x = Rs.20/19x$

Gain = ${20x}/19 - x = Rs.x/19$

Gain per cent = ${x/19}/x × 100 = 5.26%$

Using Rule 3,

Here C.P. = $95/100$ S.P.

C.P. = S.P.$(100/{100 + Profit%})$

$95/100$ S.P.

= S.P.$(100/{100 + Profit%})$

9500 + 95 profit% = 10000

Profit % = $500/95$ = 5.26%

Question : 13 [SSC CISF Constable 2011]

A milkman bought 70 litres of milk for Rs.630 and added 5 litres of water. If he sells it at Rs.9.00 per litre, his profit per centage is

a) 8$2/5$%

b) 7%

c) 8$1/5$%

d) 7$1/7$%

Answer: (d)

CP of 75 litres of mixture of milk and water = Rs.630

SP of 75 litres of mixture of milk

and water = 9 × 75 = Rs.675

Gain = 675 - 630 = Rs.45

Gain per cent = $45/630 × 100 = 50/7 = 7{1}/7$%

Question : 14 [SSC MTS 2013]

A merchant purchases a wrist watch for Rs.450 and fixes its list price in such a way that after allowing a discount of 10%, he earns a profit of 20%. Then the list price of the watch is

a) Rs.550

b) Rs.700

c) Rs.650

d) Rs.600

Answer: (d)

If the marked price of watch be x, then

$x × 90/100 = {450 × 120}/100$

$x = {450 × 120}/90$ = Rs.600

Question : 15 [SSC CHSL 2010]

A man purchased a bedsheet for Rs.450 and sold it at a gain of 10% calculated on the selling price. The selling price of the bedsheet was

a) Rs.480

b) Rs.475

c) Rs.460

d) Rs.500

Answer: (d)

Let the S.P. of the bedsheet be Rs. x.

$450 + {10 × x}/100 = x$

$x - x/10 = 450$

${9x}/10 = 450$

$x = {450 × 10}/9$ = Rs.500

Using Rule 1,

C.P. = Rs. 450,

Profit = ${10\text"S.P."}/100 = \text"S.P."/10$

Profit = S.P. - C.P.

$\text"S.P."/10$ = S.P. - 450

450 = S.P. - $\text"S.P."/10$

S.P. = ${450 × 10}/9$ = Rs.500

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