How many integers from 1 to 1000 are divisible by 30 but not by 16?
What is the slope of the line perpendicular to the line by y + -5x+9?
If m and p are positive integers and m+pm is even, Which of the following must be true?
The population of a center town increases by 50% every 50 years. If the population in 1959 was 810, in what year was the population 160?
The three sides of a triangle are x+1, 2x-1 and 3x+1 respectively and the perimeter is 25 cm. The length of the smallest side is-
If the length of a rectangle is increased by 20% and width is decreased by 20% what is the change in area of the rectangle?
In how many ways a team of 11 members can be formed from a group of 15 students if a students who is the owner of the ball is always considered a member of the team?
At the beginning of a class period, half of the students in a class go to the library. Later in the period, half of the remaining students go to the computer lab. If there are 8 students remaining in the class, how many students were originally in the cla
The dimensions of a box are 2, 3 and 4 meters. The cost of painting the outer sides of the box at the rate of taka 3 per square meter is-
A coin is tossed twice. What is the probability of getting head on first toss and tail on second toss?
The average of eight numbers in 14. The average of six of these numbers 16. The average of the remaining two numbers is 16. The average of the remaining two numbers is-
A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. His average speed for the whole journey in km per hour is-
If x : y = 5 : 3, then 8x - 5y : 8x + 5y =?
The sum of first 17 items of the series 5, 9, 13, 17,....... is-
Mira is 30 times older than her son. 18 years later she will be thrice as old as her son. What is Mira's present age?
The H.C.F of two numbers is 24. The number which can be their L.C.M is-
If A = {1,2,3,4,5}, then the number of proper subsets of A is-
log 36/ log 6 =?
How many real roots dose the polynomial 2x3+8x-7 have?
If a and b are integers greater than 100 such that a+b =300, which of the following could be the exact of a to b?