Quantitative Aptitude - Arithmetic Ability Questions

30 women do half of the total work in 30 days. How many more women will be required to complete the remaining work in 10 days?

A milkman buys milk at Rs 25 per litre and adds 1/4 of water to it and sells the mixture at Rs 26 per litre. His gain (in %) is?

A train travels 20% faster than a car. Both start from point A at the same time and reach point B, 180 km away at the same time. On the way the train takes 30 minutes for stopping at the stations. What is the speed (in km/hr) of the train?

A sphere of radius 21 cm is cut into 8 identical parts by 3 cuts (1 cut along each axis). What will be the total surface area (in cm2) of each part?

If the product of two numbers is 3026 and their LCM is 89, then their HCF is :

If Cosec θ = 25/7 , then what is the value of Cot θ?

If Tan θ = 9/40, then Sec θ = ?

The marked price of a chair is Rs 550 and a discount of 20% is given on it. What is the selling price (in Rs)?