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A shopkeeper sells two items at Rs 100 each. One was sold for a profit of 10% and another at a loss of 10%. What was the net profit or loss?

find the remainder when 28! is divided by 899?

find the number of ordered pairs(a,b,c,d) such that abcd=10800?

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if the ratio of boys and girls is 4:5,if 200 girls is taken out ratio becomes 6:7,find the no of girls??????

If there 1 paise,10 paise and 1 rupee coins.in how many ways can a person 175 paise?

4+44+444...n terms = a, then find 81a/4+10+9n=? Please explain the concept behind this.

a,b are two +ve no.s : a<4,b<4. Find the probability that 2a+3b<14? the ans is given as 13/16. can u tell me how is it so?

What is the remainder when 22! is divided by 43.