Question
In an imaginary mathematical system, symbol '–' stands
for addition, symbol '+' stands for division, symbol '×' stands for subtraction, and symbol '÷' stands for multiplication. All other rules of mathematics are the same as in the existing system. What is the value of the following expression? 240 × 72 + 8 ÷ 24 – 6Solution
Decoding the information, Given: 240 × 72 + 8 ÷ 24 – 6 After replacing the signs from left to right and using the BODMAS rule, = 240 - 216 + 6 = 246 - 216 = 30 Hence, “30” is the correct answer.
850, 849, 841, 814, 750, 688
Find the wrong number in the given number series.
233, 206, 183, 152, 125, 98
- Find the wrong number in the given number series.
2, 6, 14, 30, 62, 126 1024 3072 384 1152 145 432
Find the wrong number in the given number series.
32, 61, 92, 129, 170, 211
Find the wrong number, in the given number series,
1680, 840, 2520, 630, 3150, 475
7, 27, 10, 32, 17, 37
34, 51, 85, 119, 185, 221
- Find the wrong number in the given number series.
7, 16, 43, 128, 367, 1096 - Find the wrong number in the given number series.
27, 38, 52, 70, 94, 122