Question
Vegetables lose water when cooked. Raw vegetables
contain 90% water, but after cooking they contain only 50% water. How much raw vegetable is needed to get 600 grams of cooked vegetables?Solution
Raw: 10% solid Cooked: 50% solid Let raw weight = x grams 0.1x = 0.5 * 600 0.1x = 300 → x = 3000 grams = 3 kg
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
56 * 112 * 4 * 15 * 5 * 9
Which two signs should be interchanged to make the following equation correct?
52 – 27 ÷ 9 + 7 × 5 = 20
If 'A' stands for '-', 'B' stands for '×', 'C' stands for '+', and 'D' stands for '÷', then what is the value of the following expression.
45 D...
Select the correct sequence of mathematical signs to replace the ‘@’ signs so as to balance the given equation.
264 @ 44 @ 17 @ 6 @ 32 = 76
In the following question, which mathematical operators can be used so that the expression will become correct?
9 * 6 * 28 * 4 * 30
If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?
14 ÷ 5 x 63 - 9 ...
In a certain code of language, ‘+’ represents ‘x’, ‘-‘ represents ‘+’, ‘x’ represents ‘÷’ and ‘÷’ represents ‘-‘ what ...
If 'A' represents 'Multiplication', 'B' represents 'Addition', 'C' represents 'Division' and 'D' represents 'Subtraction', then find the value of the f...
If P @ Q means P + Q, P # Q means P − Q, P $ Q means P × Q and P % Q means P ÷ Q, then what is the value of '144 % 12 $ 6 # 32 @ 15'?
...A cheetah can catch a deer running with a speed of 126 km/h and is 55 meters ahead of it, in 11 seconds. Find the time taken by the cheetah to catch a z...
Relevant for Exams:
