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Start learning 50% faster. Sign in nowlet the Mamta's salary be = Rs.60000 Than, the Rishi’s salary will be = Rs.50000 7x + 5y = 60000.....1 6x + 4y= 50000.......2 Solving simultaneously Eq 1 and 2 , we get y = 5000 then, the Savings of Rishi is = Rs 20,000 Therefore, the expenses of Rishi is = Rs.30,000
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
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There are 5 Red caps, 3 Green caps and 2 Blue caps in a box. 4 caps are chosen at random. What is the probability of their being 2 Red and 2 Blue caps?
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If the letters of the word HORIZON be arranged at random, what is the probability that vowels are not together?
A contains X green Balls, '7 Red Balls, and 5 Yellow Balls. The probability to pick Green Ball at random is 3/5. Another Bag B contains ‘6 green Balls...
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...