Instructions: What will come in place of question mark (?) in the following questions?
$$\frac{28}{65}$$ x $$\frac{195}{308}$$ ÷ $$\frac{39}{44}$$ + $$\frac{5}{26}$$ = ?
[(3$$\sqrt{8}$$+ $$\sqrt{8}$$ ) (8$$\sqrt{8}$$ + 7$$\sqrt{8}$$ )] - 98 = ?
$$\sqrt{11449}$$x$$\sqrt{6241}$$ - (54)2 = $$\sqrt{?}$$ + (74)2
For the following questions answer them individually
10 years ago, the ages of A and B were in the ratio of 13: 17. 17 years from now the ratio of their ages will be 10: 11. What is the age of B at present ?
Ramola’s monthly income is three times Ravina’s monthly income, Ravina’s monthly income is fifteen percent more that Ruchika’s monthly income. Ruchika’s monthly income is Rs. 32,000. What is Ramola’s annual income?
A person travels from P to Q at a speed of 40 kmph and returns to Q by increasing his speed by 50%. What is his average speed for both the trips?
The LCM of two numbers x and y is 20. Find the number of unordered pairs (x,y)?
What is the difference between the simple and compound interest on Rs.7,300 at the rate of 6 p.c.p.a. in 2 years?
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