Round, off the following numbers as indicated: 219.67 upto 3 digits

Round, off the following numbers as indicated: 23.35 upto 3 digits

Round, off the following numbers as indicated: 143.45 upto 4 digits

Round, off the following numbers as indicated: 26.325xx10^-4 upto 4 digits

Round the following number to three significant figures. 23000

Round up the following upto three significant figures: i. 34.216 ii. 10.4107 iii. 0.04597 iv. 2808

Round the following number to three significant figures. 0.1235

Write the sequence of all three digit numbers. Which leaves remainder 3 on division by 7? Which is the last term of this sequence?

How many five digits telephone numbers can be constructed using the digits 0 to 9, if each number starts with 67 and no digit appears more than once?

How many 5-digit telephone numbers can be constructed using the digits 0 to 9 if each number starts with 67 and no digit appears more than once?

IF 4 digit numbers greater than or equal to 5000 are randomly formed from the digits 0,1,3,5 and 7 what is the probability of forming a number divisible by 5 when the repetition of digit is not allowed?