Some equations have been solved on the basis of a particular system. On the same basis, find the correct answer to the equation.
1 × 3 × 5= 531
2 × 7 ×9 =972
4 × 6 × 8=?

Twenty students are standing in a straight-line facing North. Rina is standing sixth from the left end. There are only three students between Rina and Shweta. Radha is standing exactly between Shweta and Rina. Tina is standing sixth to the right of Radha. Anita is standing fourth from the right end of the line. There are more than four students between Rina and Tina.
What is Shweta’s position with respect to Anita?

If the digits of the number 5 4 3 2 1 6 9 8 7 are arranged in an ascending order then how many digits remain in the same position?

Find the odd word from the following:

Vikas showed a photograph and said: “She is the daughter of my grandfather’s only son.” What is the relation of Vikas with the girl in photograph?

Find the odd word from the following:

Sonu came out from her home and went 6 km in the East. Then she turned 45 degree to the left and went 4 km, then turned 135 degree to the right and went 5 km.  Her face at this point was in-

If “*” denotes “added to”, “&” denotes “divided by”, “@” denotes “multiplied by” and “%” denotes “subtracted from”, then
399 & 19 @ 21 % 41 * 100 =?