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Which was the world's first electronic computer?

Is the keyboard of a computer processing F8 key for three times selects?

A fair six side dice is rolled. Find th probality of getting an odd number or a number less than 4.

How many positive integers less than ten thousand are multiples of both eight and eighteen.

The H.C.F and L.C.M of two numbers are 12 and 288 respectively. If one of the numbers is 96. Find the other.

In a room of 36 people. 20 players play chase while 28 players play poker. How many players play both?

You are lookng at a billboard 40m away with an angle of elevation of $30°$. At what height is the billboard?

What is the propability of getting a sum of six if two dices are thrown at once?

A leader rests against a wall is perpendicular to the ground if the bottom of the ladder is 4m away from the bottom of the wall, while the top of the ladder is at a height of 3m. What is the length of the ladder.

The ration of male student of female students ina class is 13 t0 19. If there are 224 people in the class, including one teacher. One administrator and thirty evaluations. How many people in the class are male students?

5 years ago the ration of father's age to son's age was 5:1 and 2 years later father's age will be 3 times his sons's age. What is ration of their present age?

What is the value of a If $3x^2+ax+a+3 divisible x+2?$

A train 220 m long is moving at 45km/h. The time taken by the train to crosse tunned 260m long is-

If 12 man work on a particular task. It takes them 24 days to complex it. On the other hand 12 women can complete the same task in 12 days. How many days would it take if the 12 man and 12 women complete with each othre to finish the same task?

Ahmed sold a T- shirt TK. 810 again 8%. How much did he purchase it for?

Two truck 300 km away are travelling towards is other witha constant speed. Truck A is moving at a average speed 70 km/h while truck B is moving at average speed 50 km/h who long does it take them meet.

A restaurant makes 20% profit after selling a set menu at a discount of 20% . What is the percentage increase of marked price?

$a^2-b^2=20 ; a+b=5$, what is the value of a - b ?

$x+y=5, x+4y=4$, what is the value of $4x^2+16y^2?$

What is the noun form of the word 'defer'?