For the following questions answer them individually
The cost price of 12 pens and 6 pencils is Rs. 168. What will be the cost price of 18 pens and 9 pencils ?
The ratio of the present ages of Rahul and Deepak is 2 : 3. After five years, Rahul will be 31 years old. What will be the age of Deepak after three years?
What will be the average of the following set of numbers ?
678, 193, 285, 494, 342, 762
A can complete a certain work in 14 days, while B can do it in 5 days. In how many days will A and B together do the same work ?
Which of the following words can be rearranged in 720 ways ?
LETTER, TRUCKS, COUNTRY, THERE, FINDS
What will come in place of the question mark (?) in the following questions ?
$$\sqrt{9280 \div16 \times 4 -16}=?$$
$$1\frac{5}{14}+3\frac{4}{7}+4\frac{9}{28}=?$$
2900 $$\div$$ 8 $$\div$$ 5 + $$(6)^{2}$$
$$(5)^{3}+(12)^{2}-(26 \div 2) =(?)^{2}$$
(53 $$\times$$ 18) + (85 $$\times$$ 7) = ?