20 % of [(7+5-3/12)-6] = ?
sorry . correction in the question.
20 % of 5+ 8 [(7+5-3/12)-6] = ?
Plz help.
Ans. [a] 89 [b] 84 [c] 44 [d] 47
5+ 8 [(12-1/4)-6]
5+ 8 [48-1/4) -6]
5+ 8 [47/4-6]
5+ 8 [47-24/4]
5+ 8 [23/4]
5+ 8*23/4
5+ 46 = 51 ??
ok.I got it.
20% of 5 is 1. so 1+ 46 = 47.
option [d].
20 % of 5+ 8 [(7+5-3/12)-6]
= .2( 5+ 8 [(7+5-3/12)-6] )
= .2(5 + 8[6 - 1/4]
= .2(5 + 8[23/4]
= .2(5 + 46)
= .2(51)
= 10.2
To evaluate the expression 20% of [(7 + 5 - 3/12) - 6], you can follow these steps:
Step 1: Simplify the expression within the brackets (parentheses) first.
In this case, [(7 + 5 − 3/12) − 6] simplifies to [(12 − 3/12) − 6].
To simplify further, convert 3/12 to its decimal form, which is 0.25.
Now the expression becomes [(12 − 0.25) − 6].
Step 2: Evaluate the expression within the brackets.
Subtracting 0.25 from 12 gives 11.75.
Thus, the expression becomes (11.75 - 6).
Step 3: Evaluate the expression within the parentheses.
Subtracting 6 from 11.75 gives 5.75.
Step 4: Calculate 20% of 5.75.
To find 20% of a number, you can multiply the number by 0.2.
In this case, 5.75 × 0.2 = 1.15.
Therefore, 20% of [(7 + 5 - 3/12) - 6] is equal to 1.15.