Answer:
Lm = 30
Step-by-step explanation:
QP/LM = PN/NL
(x - 1)/(x + 3) = 12/18
18(x - 1) = 12(x + 3)
18x - 18 = 12x + 36
18x - 12x = 36 + 18
2x = 54
x = 54 : 2
x = 27
LM = x + 3 = 27 + 3 = 30
Answer:
10 incorrect answers
Step-by-step explanation:
From the information given, you can say that 5 marks for the number of correct answers minus two marks for the number of incorrect answers is equal to 30 that is the score that Radhika got:
(5*10)-2x= 30, where x is the number of incorrect answers.
Now, you can solve for x:
50-2x=30
50-30=2x
20=2x
x=20/2
x=10
According to this, the answer is that they attempted 10 incorrect answers.
1720 - 1040 = 680
680/7 = 97.1
I would put them in intervals of 100
First find how long it would take one person to do this job. Which would be 120 hours since 15*8= 120. Do do half the job would require half the amount of time (60 hours). To do this half job with 5 men would be 60 hours divided across the 5 men which would be 12 hours each