For the following questions answer them individually
Which of the following numbers is divisible by 36?
Amar can complete a work in 15 days, and Prem, in 12 days. Starting with Amar, they work on alternate days. In how many days will the work be completed?
A and B alone can do a piece of work in 4 and 9 days, respectively. In how many days will the work be completed, if they both work on alternate days, starting with B?
If two qualities of pulses 'X' and 'Y' of prices ₹100 and ₹150 per kg are mixed in the ratio 7 : 20, then what is the price (in ₹) of this mixture of pulses (correct to the nearest Rupee)?
If ($$x - \frac{1}{x} = -6$$) what is the value of $$x^{5} - \frac{1}{x^{5}}$$?
Study the following bar chart and answer the question.
Find the percentage increase of sales of XYZ phones from 2019 to 2020? (Rounded up to 2 decimal places)
In a factory, 48% of the number of male workers is equal to two-third of the number of female workers. What is the ratio of the number of males to that of the females in the factory?
If (a + b + c) = 19, and $$(a^{2} + b^{2}+ c^{2}) = 155$$, find the value of $$(a - b)^{2} + (b - c)^{2} + (c - a)^{2}$$.
The difference (in ₹) between a discount of 35% on ₹3,600 and two successive discounts of 30% and 5% on the same amount is:
Raja and Rocky together can complete painting work in 5 days. Together they both start painting, but after 2 days, Rocky falls sick and leaves the work. If Raja completes the remaining painting in 4 days, find the number of days in which Rocky alone can do the work.