Tag: addition & subtraction
Questions Related to addition & subtraction
A 3-digit number 4a3 is added to another 3-digit number 984 to give the four-digit number 13b7 which is divisible by 11 Then (a + b) is
In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If she attempts in all 50 questions and scores 120 marks, the number of questions she attempts correct is........
What is the value of $(\sqrt 7+\sqrt 5)(\sqrt 7-\sqrt 5)$?
If the sum of two consecutive odd numbers is 2004, then the smaller of the two numbers could be
How many times does the sum of 375 and 125 contain their difference?
A man can row 16 km downstream in one hour but upstream he takes twice the time then the speed of the current is
If a=2, b=3, c=4, then the difference between $\displaystyle 2\frac{3}{4}$ and $\displaystyle b\frac{a}{c}$ is
If 125 x centimetre per second = (x+7) km/hour then the value of x is
If 5 labourers can make 5 mats in 5 hours then the number of mats that 10 labourers can make in 10 hours are
The average weight of 7 men is diminished by 3 kg when one of them who weighs 73 kg is replaced by a new man then the weight of the new man is