Question

A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in?
By selling oranges at Rs. 12 per kg, a man loses 10%. For gaining 25%, what should be the cost price?
An article is sold at a profit of 20%. If both the cost price and selling price are Rs. 100 less, the profit would be 4% more. Find the cost price ?

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Answer 1

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QUESTION-

A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in?

By selling oranges at Rs. 12 per kg, a man loses 10%. For gaining 25%, what should be the cost price?

An article is sold at a profit of 20%. If both the cost price and selling price are Rs. 100 less, the profit would be 4% more. Find the cost price ?

ANSWER

The ratio of times taken by A and B =1:3 Means B will take 3 times which A will do in 1 time.

If the difference of time is 2 days, B takes 3 days.

If difference of time is 10 days B takes

3/2×10=15 days

ANSWER 2

S.P.(Loss) : C.P. = S.P.(Gain)

90 : 100 = 150

Hence, Price S.P.(%) Price S.P.(%)

12 : 90 = x : 125

∴x= 12*125/90=Rs.16.67

ANSWER 3

Let CP =x=x, so S.P =1.2x

When CP is Rs. 100 less,

CP=x−100

SP=1.2x−100

Now,

1.2x−100=1.24×(x−100)

On solving , we get

x=600

CP=Rs.600

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Answer 2

ANSWER

The ratio of times taken by A and B =1:3 Means B will take 3 times which A will do in 1 time.

If the difference of time is 2 days, B takes 3 days.

If difference of time is 10 days B takes

3/2×10=15 days

ANSWER 2

S.P.(Loss) : C.P. = S.P.(Gain)

90 : 100 = 150

Hence, Price S.P.(%) Price S.P.(%)

12 : 90 = x : 125

∴x= 12*125/90=Rs.16.67

ANSWER 3

Let CP =x=x, so S.P =1.2x

When CP is Rs. 100 less,

CP=x−100

SP=1.2x−100

Now,

1.2x−100=1.24×(x−100)

On solving , we get

x=600

CP=Rs.600