A does 30% of a work in 30 days. He then calls in B and they together finish the remaining work in 20 days. How long B alone would take to do the whole
work?
1). 40 days
2). 80 days
3). 120 days
4). 20 days
What is the slope of the line 4x - 8y = 3?
1). $\frac{-1}{2}$
2). 2
3). $\frac{1}{2}$
4). -2
If the selling price is Rs 1680 after getting a discount of 16%, what was the marked price?
1). Rs 2000
2). Rs 1948.8
3). Rs 1411.2
4). Rs 1448
A dishonest milkman buys milk at Rs 30 per litre and adds 1/5 of water to it and sells the mixture at Rs 32 per litre. What will be his gain?
1). 33.33 percent
2). 50 percent
3). 28 percent
4). 25 percent
A man travels 420 kilometres in, partly by rail and partly by steamer. He spends 8 hours more time on steamer. If the velocity of the steamer is 35 km/hr and
the velocity of rail is 65 km/hr, how much distance does he cover by steamer?
1). 395 km
2). 329 km
3). 494 km
4). 592 km