If the following mathematical signs are changed as given below, then select the option which represents the correct equation. ÷ is changed to + × is changed to - + is changed to × - is changed to ÷
If the following mathematical signs are changed as given below, then select the option which represents the correct equation. ÷ is changed to + × is changed to - + is changed to × - is changed to ÷ Correct Answer 26 + 18 - 39 × 4 ÷ 111 = 119
According to the BODMAS rule:
[ alt="boadmas" src="//storage.googleapis.com/tb-img/production/21/12/boadmas.png" style="width: 343px; height: 179px;">
|
Sings |
÷ |
× |
+ |
- |
|
Change sings |
+ |
- |
× |
÷ |
Option 1 : 26 × 18 ÷ 39 + 4 - 111 = 100
After interchange the signs;
26 - 18 + 39 × 4 ÷ 111 = 100
By BODMAS rule
26 - 18 + 39 × 0.0360 = 100
26 - 18 + 1.405 = 100
27.405 - 18 = 100
9.405 = 100 (LHS ≠ RHS)
Option 2 : 26 + 18 - 39 × 4 ÷ 111 = 119
After interchange the signs;
26 × 18 ÷ 39 - 4 + 111 = 119
By BODMAS rule
26 × 0.461 - 4 + 111 = 119
12 - 4 + 111 = 119
123 - 4 = 119
119 = 119 (LHS = RHS)
Option 3 : 26 - 18 + 39 × 4 ÷ 111 = 203
After interchange the signs;
26 ÷ 18 × 39 - 4 + 111 = 203
By BODMAS rule
26 ÷ 18 × 39 - 4 + 111 = 203
1.45 × 39 - 4 + 111 = 203
56.5 - 4 + 111 = 203
167.5 - 4 = 203
163.5 = 203 (LHS ≠ RHS)
Option 4 : 26 - 18 ÷ 39 + 4 × 111 = 40
After interchange the signs;
26 ÷ 18 + 39 × 4 - 111 = 40
By BODMAS rule
1.4 + 39 × 4 - 111 = 40
1.4 + 39 × 4 - 111 = 40
1.4 + 156 – 111 = 40
157.4 – 111 = 40
46.4 = 40 (LHS ≠ RHS)
Hence, the answer is “26 + 18 - 39 × 4 ÷ 111 = 119”.