In a class test , the average mark of Leena and Meena is 80. The average of Meena and Reena is 85 years and the average of Leena and Reena is 90. Find Meena's mark.
The incomes of X, Y and Z are in the ratio 5:7:9 and their expenditures are in the ratio 6:7:12. If X saves 30% of his income, then what is the ratio of their savings?
(a) 24:18:35
(b) 18:35:24
(c) 24:35:18
(d) 18:24:35
A, B and C start a business. Profit earned by A is 10% more than B and profit earned by B is 15% less than C. The ratio of their investment is
(a) 178:170:200
(b) 187:170:200
(c) 180:162:190
(d) 163:175:190
Ashok and Amit started a business with investment of 5 lakh and 4 lakh. Amit runs the business and gets - of profit as salary on which he pays 10% tax. If they are with the same amount of profit finally, total profit earned is
(a) 30000
(b) 50000
(c) 80000
(d) Cannot be determined
In mathematics the art of proposing a question must be held of higher value than solving it.
...Georg Cantor ( inventor of set theory)
Georg Cantor ..
"The gaming of numbers is called maths.So participate in this wonderful game and explore in it,learn in it and enjoy in it.Then only you can pass in this wonderful game."