Question
Which of the following is a prime
number?Solution
429 = 33Â 
13 So it is not a prime number. 494 = 26Â 19 So it is not a prime number. 513 = 27Â 19 So it is not a prime number. 409 is a prime number because it is not divisible by any number except 1 & itself. 737 = 67Â 11 So it is not a prime number.
More No. System Questions
Evaluate:
7.5 + 12 ÷ (4 × 1.5) − 2.4
22% of 560 + 34% of 2160 × 5/12 =? + 16% of 920
(506 ÷ 22 + 9 × 3) × ? = 900 ÷ 9
10³ = (? – 6) × 320 ÷ 8
7(3/6) of 534 + 262 = 61800 - ?
(150% of 950) ÷ ? = 25
181/8 + 51/4 – 63/8 = ? + 9/2
34 × 5 × 2 ÷ 6 + 7 × 5 + 13 = (?)× 6 – 754
What will come in the place of question mark (?) in the given expression?
?% of 2480 + 15 × 34 = 1440
