Tap A and Tap B can fill a tank in (3x+ 3) hours and (2x + 2) hours respectively. If tap B is 50% more efficient than tap A, then find the value of ‘x’.

A train of length 200 m crosses a platform of length 80 m in 8 seconds. While moving at the same speed the train can cross a standing bus of ‘x’ m in (44/7) seconds, then find the value of ‘x’.

What will come in place of the question mark (?) in the following series?

34, 38, 54, 90, ?, 254

What will come in place of the question mark (?) in the following series?

109, 124, 94, 139, ?, 154

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Two trains, while travelling in same direction, of length 800 m and 600 m respectively cross each other in 140 seconds. If the speed of the faster train is 30 m/sec, then in how much time will the slower train (800 m long) cross a 350 m long bridge?

Marks obtained by Sachin is 20% more than that of Saurabh, and marks obtained by Saundarya is 24 more than the difference of marks obtained by Saurabh and Sachin. If Saundarya obtained 76 marks, then find the marks obtained by Sachin.

A, B and C individually can do a certain piece of work in 24, 30 and 36 days respectively. They started working together but after ‘x’ days A and C both left the job and the remaining work is done by B alone in 23/2 days. Find the value of ‘x’.

‘A’ started working alone and completed 30% of the work in 18 days. After that, he was joined by ‘B’ and they both together completed the remaining work in 24 days. Find the time taken by ‘B’ to finish the same work alone.

The interest earned on investing Rs. 6,000 for ‘x’ years at compound interest (compounded annually) of 15% p.a., is Rs. 1,935. Find the simple interest received if Rs. 6000 is invested at 15% p.a. for ‘x’ years.

An article is marked 80% above its cost price and is sold for Rs. 1,224 after giving two successive discounts of 20% and 15%, respectively. Find the difference between marked price and cost price of the article.

There are two types of rice i.e. type ‘I’ and type ‘II’, costing Rs. 41/kg and Rs. 76/kg, respectively. 36 kg of the type ‘I’ rice should be mixed with how much quantity of type ‘II’ of rice so that the cost of the final mixture becomes Rs. 55/kg.

The ratio of age of Riya 6 years ago from now to the age of Manju 6 years hence from now, is 4:7. If average of present ages of Riya and Manju is 33 years, then find the difference between present ages of Riya and Manju.

The radius of a circle is equal to the length of each side of a square. If the area of square is 225 cm2, then find the circumference of the circle. [Take π = 3 cm]

In a given years, Rahul sold 1500 caps while Ankit sold 30% more number of caps than Rahul and Rashi sold 20% less number of caps than Ankit. Find the ratio between the number of caps sold by Rashi to that by Rahul in the given year.

What will come in place of the question mark (?) in the following series?

400, 394, 378, 352, 316, ?

What will come in place of the question mark (?) in the following series?

18, 31, 42, 49, 54, ?

The ratio of the pocket money of two persons ‘A’ and ‘B’ is 5:3, respectively. ‘A’ spends 80% of his pocket money while ‘B’ spends 75% of his pocket money. If the savings of ‘A’ is Rs. 120 more than that of ‘B’, then find the total pocket money of ‘A’.