Question
The lengths of a pair of parallel sides of a trapezium
are respectively 18 cm and 15 cm and the perpendicular distance between these two sides is 12 cm. What is the area (in cm²) of the trapezium?Solution
According to the question Area of trapezium = 1/2 x sum of its parallel sides x perpendicular distance between parallel sides 1/2 x (18 + 15) x 12 cm² = (1/2 x 33 x 12) cm² = (33 x 6) cm² = 198 cm² The area of the trapezium is 198 cm².
- Aman originally had 32 black marbles and 28 white marbles. He then purchased (X + 2) additional black marbles and (X + 1) additional white marbles. After m...
Each member of a picnic party contributed twice to their serial number. The total collection was Rs 3042. The (approximate) number of members present in...
A two-digit number has a sum of its digits equal to 8. Additionally, if 27 is subtracted from this number, the resulting number has its digits reversed....
The sum of two numbers is 60 whereas the sum of their reciprocals is (20/9). Find the square of the product of the two numbers.
- In an arithmetic progression, the first term is 18, the common difference is 6, and the total number of terms is 48. What is the sum of all the terms in th...
Manas ordered 6 Levis jeans and some additional Blackberry jeans. The price of one Levis jeans was twice that of one Blackberry jeans. When the order wa...
If a number is decreased by 30 and divided by 12, the result is 20. What would be the result if 200 is subtracted from that number and then it is divide...
Nine numbers are arranged in decreasing order. The average of the first eight numbers is 50, and the average of the last eight numbers is 45. What is th...
The total of three numbers, A, B, and C, is 2450. The second number, B, is 4/7 greater than the first number, A. The third number, C, exceeds A by 375. ...
A two-digit number has a sum of its digits equal to 12. Additionally, if 45 is subtracted from this number, the resulting number has its digits reversed...