There are 7 girls on a bus and each girl has 7 backpacks. In each backpack, there are 7 big cats, for every big cat, there are 7 kittens on bus. How many legs are on the bus, not counting the driver? 1. 10,000 2. 11,000 3. 10,990 4. 9,990
In the data, we are said that the number of legs of the driver shouldn’t be counted. So, we shall ignore the driver.
It is given that there are 7 girls on the bus. Since humans have 2 legs, there are:
[tex] \dashrightarrow\sf{7(2)=\bf{14\:legs}}[/tex] (in the girls group).
Now, heading towards the big cats, it is given that each girl has 7 backpacks and in each backpack, there are 7 big cats. So, the number of backpacks in the bus is:
There are 7 girls on a bus and each girl has 7 backpacks. In each backpack, there are 7 big cats. For every big cat, there are 7 kittens. How many legs are on the bus, excluding the driver.
Solution:
First let’s list out the organisms in the bus.
Driver
Girls
Big cats
Kittens
In the data, we are said that the number of legs of the driver shouldn’t be counted. So, we shall ignore the driver.
It is given that there are 7 girls on the bus. Since humans have 2 legs, there are:
[tex] \dashrightarrow\sf{7(2)=\bf{14\:legs}}[/tex] (in the girls group).
Now, heading towards the big cats, it is given that each girl has 7 backpacks and in each backpack, there are 7 big cats. So, the number of backpacks in the bus is:
[tex]\underline{\underline{\huge{\blue{\tt{\textbf Answer :-}}}}}[/tex]
First let’s list out the organisms in the bus.
In the data, we are said that the number of legs of the driver shouldn’t be counted. So, we shall ignore the driver.
It is given that there are 7 girls on the bus. Since humans have 2 legs, there are:
[tex] \dashrightarrow\sf{7(2)=\bf{14\:legs}}[/tex] (in the girls group).
Now, heading towards the big cats, it is given that each girl has 7 backpacks and in each backpack, there are 7 big cats. So, the number of backpacks in the bus is:
[tex] \dashrightarrow\sf{7(7)=49}[/tex]
Since there are 7 big cats in each backpack, the total number of big cats is:
[tex] \dashrightarrow\sf{49(7)=343}[/tex]
A big cat has 4 legs. So, the total number of legs in big cats group is:
[tex] \dashrightarrow\sf{343(4)=\bf{1372\: legs}}[/tex]
As per the data, each big cat has 7 kittens. Hence, the number of kittens, 343 big cats has is:
[tex] \dashrightarrow\sf{343(7)=2401}[/tex]
We know big cats have 4 legs, their kittens will also have 4 legs and as a result, there are:
[tex] \dashrightarrow\sf{2401(4)=\bf{9604\: legs}}[/tex] (in the kittens group).
Finally, on summing up the total number of legs in each group gives the required answer, i.e.,
[tex] \dashrightarrow\sf{14+1372+9604}[/tex]
[tex] \dashrightarrow\sf{1386+9604}[/tex]
[tex] \dashrightarrow\underline{\boxed{\bf{\red{10990}}}}[/tex]
✦ Therefore, there are 10,990 legs on the bus, excluding the count of driver’s legs. Hence, option (3) is correct.
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Given data:
There are 7 girls on a bus and each girl has 7 backpacks. In each backpack, there are 7 big cats. For every big cat, there are 7 kittens. How many legs are on the bus, excluding the driver.
Solution:
First let’s list out the organisms in the bus.
In the data, we are said that the number of legs of the driver shouldn’t be counted. So, we shall ignore the driver.
It is given that there are 7 girls on the bus. Since humans have 2 legs, there are:
[tex] \dashrightarrow\sf{7(2)=\bf{14\:legs}}[/tex] (in the girls group).
Now, heading towards the big cats, it is given that each girl has 7 backpacks and in each backpack, there are 7 big cats. So, the number of backpacks in the bus is:
[tex] \dashrightarrow\sf{7(7)=49}[/tex]
Since there are 7 big cats in each backpack, the total number of big cats is:
[tex] \dashrightarrow\sf{49(7)=343}[/tex]
A big cat has 4 legs. So, the total number of legs in big cats group is:
[tex] \dashrightarrow\sf{343(4)=\bf{1372\: legs}}[/tex]
As per the data, each big cat has 7 kittens. Hence, the number of kittens, 343 big cats has is:
[tex] \dashrightarrow\sf{343(7)=2401}[/tex]
We know big cats have 4 legs, their kittens will also have 4 legs and as a result, there are:
[tex] \dashrightarrow\sf{2401(4)=\bf{9604\: legs}}[/tex] (in the kittens group).
Finally, on summing up the total number of legs in each group gives the required answer, i.e.,
[tex] \dashrightarrow\sf{14+1372+9604}[/tex]
[tex] \dashrightarrow\sf{1386+9604}[/tex]
[tex] \dashrightarrow\underline{\boxed{\bf{\red{10990}}}}[/tex]
✦ Therefore, there are 10,990 legs on the bus, excluding the count of driver’s legs. Hence, option (3) is correct.
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