find 11to 15 sum with explanation
Answers
Answer:
Step-by-step explanation:
11.
2706-6=2700
2700 is the greatest no.
7041-21=7020
7020 is the greatest no.
8250-42=8208
8208 is the greatest no.
12.
1280-20=1260
1260÷18=70
1260÷21=60
1260÷28=45
1260÷30=42
I3.
to find the maximum capacity of the bag to pack all the weight in
exact number of bags, we need to find the HCF of these weights
490=2*5*7*7
588=2*2*3*7*7
882=2*3*3*7*7
common factors are-2 and 7(occurring twice)
so HCF=7*7*2= 98
so the capacity of the bag is 98 kg...
14.
find the least common multiple of 30,36 and 45
3 |30,36,45
5 |10,12,15
3 |2,12,3
2 |2,4,1
2 |1,2,1
|1,1,1 So L.C.M. of 30,36 and 45 is 3×5×3×2÷2=180.
So after 180 minutes they ring together Therefore they all ring
together at 11:00 a.m.
15.
As both the numbers are co-primes their HCF. is ,1
Let the unknown no. be y
LCM*HCF=x*y
4990×1=65×y
y=4990÷65=76
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