Two pipes A and B can fill a tank in 15 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank ?

An athlete runs 200 metres race in 24 seconds. His speed is

By how much is 1/4 of 428 is smaller than 5/6 of 216 ?

The average height of 21 girls was recorded as 148 cm. When the teacher's height was included, the average of their heights increased by 1 cm. What was the height of the teacher?

The average of 5 consecutive number is n. If the next two consecutive numbers are also included, then the average will .....

What would be the simple interest obtained on an amount of Rs. 8,435 at the rate of 12% p.a, after 4 years?

If Rs. 16000 amounts to Rs. 17200 in 3 years, then the rate of interest is .....

Adom's on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is?

10 + 1/10 + 1/100 + 1/1000 = .....

Three partners X, Y, Z invests Rs. 34,000, Rs. 26,000 and Rs. 10,000 respectively in a business. Out of total profit of Rs. 17,500 A's share (in Rs.) is

ബാനു ഒരു പരീക്ഷയിൽ 620 മാർക്ക് വാങ്ങി , പരീക്ഷയിൽ ആകെ മാർക്ക് 800 ആണ് . എങ്കിൽ ബാനുവിന് പരീക്ഷയിൽ എത്ര ശതമാനം മാർക്ക് ആണ് ലഭിച്ചത് ?

A man's gain after selling 33 metres of cloth is equal to selling price of 11 metres cloth. In this case the gain percentage is

Which of the following fractions is the largest?

2500 രൂപ 6% പലിശനിരക്കിൽ രണ്ടുവർഷത്തേക്കുള്ള സാധാരണ പലിശയും കൂട്ടുപലിശയും തമ്മിലുള്ള വ്യത്യാസം എത്ര?

7, 16, 9, 15, 6, 3 എന്നീ സംഖ്യകളുടെ മീഡിയൻ എത്ര?

25 പേരുടെ ശരാശരി വയസ്സ് 31. ശരാശരി കണക്കാക്കിയപ്പോൾ ഒരാളുടെ വയസ്സ് 25 എന്നതിനുപകരം 35 എന്ന് എടുത്തു. എന്നാൽ യഥാർഥ ശരാശരി എത്ര?

രണ്ട് സംഖ്യകളുടെ തുക 10. അവയുടെ ഗുണനഫലം 20 എങ്കിൽ സംഖ്യകളുടെ വ്യു‌ൽക്രമങ്ങളുടെ തുക എത്ര?

1 മുതൽ 15 വരെയുള്ള ഓരോ സംഖ്യയിൽനിന്നും 10 വീതം കുറച്ച് പരസ്പരം ഗുണിച്ചാൽ ലഭി ക്കുന്ന സംഖ്യ?

ഒരു സമഗുണിത പ്രോഗ്രഷൻ ആദ്യപദം 5, പൊതുഗുണിതം 2 ആയാൽ 8-ാം പദം എത്ര?

ഒരു കച്ചവടക്കാരൻ 2 രൂപയ്ക്ക് 3 നാരങ്ങ വാങ്ങി. 3 രൂപയ്ക്ക് 2 നാരങ്ങ എന്ന തോതിൽ വിൽക്കുന്നു. അയാളുടെ ലാഭശതമാനം എത്ര?

ഒരു പരീക്ഷയിൽ 40% വിദ്യാർഥികൾ കണക്കിനും, 30% കുട്ടികൾ ഇംഗ്ലീഷിനും പരാജയപ്പെട്ടു. കണക്കിനും ഇംഗ്ലീഷിനും പരാജയപ്പെട്ടവർ 20% ആയാൽ രണ്ടു വിഷയത്തിലും വിജയിച്ചവർ എത്ര ശതമാനം?

1ന്റെ 50%ന്റെ 50% എത്ര ?

R and S start walking towards each other at 10 am at speeds of 3 km/hr and 4km/hr respectively. They were initially 17.5km apart. At what time do they meet?

The average of marks scored by the students of a class is 68. The average of the girls in the class is 80 and that of boys is 60. What is the percentage of boys in the class?

Choose the best alternative 68: 130 :: ..... : 350

A number exceeds its 3/7 by 20. what is the number?

(7+7+7)÷7/ (3+3+3÷3) =

A tap can fill a tank in 48 minutes, where as another tap can empty it in 2 hours. If both the taps are opened at 11:40 am then the tank will be filled at

Fifteen persons in a meeting shake hands with each other. How many handshakes were interchanged?

What is the simple interest of Rs. 8000 at 8% per annum for 3 years?

A and B are two cities. A man travels from A to B at 35 km/ hr and returns at the rate of 15 km/hr. Find his average speed for the whole journey?

A train moving with a uniform speed of 90 km/hr crosses a pole in 6 seconds. The length of the train is

The area of a circle is equal to its circumference. What is its diameter?

60% of 30+90% of 50 = _____ % of 252

(0.597²-0.403²) / (0.597-0.403) = .....

The average age of a set of 30 persons is 35. The average of 20 persons is 18. What will be the average of the remaining?

If 7:8::x:24, x ........?

30% of 20% of a number is 12. Find the number?

A car covers a distance of 1020 kms in 12 hours. What is the speed of the car?

A man can row with a speed of 15 km/hr in still water. If the stream flows at 5 km/hr then his speed in down stream is ..... ?

A car runs at the speed of 50 kmph when not serviced and runs at 60 kmph, when serviced. After servicing the car covers a certain distance in 6 hours. How much time will the car take to cover the same distance when not serviced?

(9801÷33) ÷ 3 = ?

The product of two numbers, 1984 and 11 is 21824. Then the product of 19.84 and 0.11 is

At what rate percent per annum will a sum of money double in 16 years in simple interest plan?

In a volleyball tournament, each of six teams will play every other team exactly once. How many matches will be played during the tournament?

A fruit merchant purchased 300 boxes of grapes at the rate of 5 boxes for Rs.30 and sold all the grapes at the rate 5 boxes for Rs.40. Percentage of his profit is:

A cube with all the sides painted was divided into small cubes of equal measurements. The side of a smallcube is exactly one fourth as that of the big cube. Then the number of small cubes with two side painted is:

100 നും 200 നും ഇടയിലുള്ള എല്ലാ ഒറ്റ സംഖ്യകളുടെയും ആകെത്തുക?

If the side of a square is increased by 30%, then the area of the square is increased by:

Salary of an employ increases consistently by 50% every year. If his salary today is 10000. What will be the salary after 4 years?