Thenmalar appeared for competitive exam which has negative scoring of 1 mark for each incorrect answer. In paper I she answered 25 questions incorrectly and in paper II, 13 questions incorrectly. Find the total reduction of marks.

Are (11 + 7) + 10 and 11 + (7 + 10) equal? Mention the property.

A lift is on the ground floor. If it goes 5 floors down and then moves up to 10 floors from there. Then in which floor will the lift be?

What number should be added to (–17) to get (–19)?

What will be the sign of the product of the following.
(i) 16 times of negative integer.
(ii) 29 times of negative integer

Replace the question mark with suitable integer in the equation
72 + (-5) - ? = 72

Subtract 94860 from (-86945)

The price of an item x increases by Rs. 10 every year and an item y decreases by Rs. 15 every year. If in 2018, the price of x is Rs. 50 and y is Rs. 90, then which item will be costlier in the year 2020.

Find the area of a trapezium whose parallel sides are 24 cm and 20 cm and the distance between them is 15 cm.

The area of a trapezium is 1080 sq. cm. If the lengths of its parallel sides are 55.6 cm and 34.4 cm, find the distance between them.

A square and a parallelogram have the same area. If the side of the square is 48 m and the height of the parallelogram is 18 m, find the length of the base of the parallelogram

One of the diagonals of a rhombus is thrice as the other. If the sum of the length of the diagonals is 24 cm, then find the area of the rhombus

Arivu has a land ABCD with the measurements given in the figure. If a portion ABED is used for cultivation (where E is the mid-point of DC), find the cultivated area.

Write the variables, constants and terms of the following expressions.
(i)18 + x − y
(ii) 7p − 4q + 5
(iii) 29x + 13y
(iv) b + 2

Subtract
(i) 13x + 12y − 5 from 27x + 5y − 43
(ii) 3p + 5 from p − 2q + 7
(iii) m + n from 3m − 7n.
(iv) 2y + z from 6z − 5y.

Find the angle \(\angle\)JIL from the given figure.

Two angles are in the ratio 11: 25. If they are linear pair, find the angles.

In the figure AB is parallel to CD. Find x,y and z.

A plumber must install pipe 2 parallel to pipe 1. He knows that \(\angle\)1 is 53. What is the measure of \(\angle\)2?

Two parallel lines are cut by a transversal. For each pair of interior angles on the same side of the transversal, if one angle exceeds the twice of the other angle by 48°. Find the angles.

In the figure AB is parallel to CD. Find x˚, y˚ and z˚.

Shade the figure completely, by using five Tetromino shapes only once.

Using the given tetrominoes with numbers, complete the 4 x 4 magic square

Using the given tetrominoes with numbers on it, complete the 4 x 4 magic square ?

Fill in 4 x 10 rectangle completely, using all the five tetrominoes twice