N invented Rs.20,000 in a business. Six months later, C joined him with Rs. 10,000. At the end of the year, the profit was Rs. 10,000. What should be the share of N?
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The sum of three consecutive even integers is 84. Which is the least integer among them?
The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
Simplify : 213 - 112 of 35 + 125 ÷ 213
Two fractions are such that their product is 9/10 and sum is 13/40. What are the two fractions.
The measures of the four angles of a quadrilateral are in the ratio 1:2:4:5. What is the measure of the biggest angle?
A circle of diameter 26 cm having the two equal chords of length 10 cm is separated by a distance x cm. Calculate the distance x.
P can do a piece of work in 60 days & Q can do the same work in 50 days. Find the ratio of working efficiencies of P to Q.