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Bus is Moving In 'This' Direction!
Why dirction was asked to find?
Well, it totally depends on the location of the bus. How? Read further.
If you look at it carefully, then you can notice that the doors of the bus are missing.
That clearly indicates, those must be on the other side of bus.
Hence if bus is on the roads of India then it must have doors at it's left side & hence the bus must be moving in the right direction.
While in some countries, bus might have doors at the right; in the case the bus must be moving in left direction.
Viral Maths Problem Confusing Students & Parents
There
are 73 red, blue and green marbles in a jar. There are twice as many
red marbles as blue marbles. There are 19 more marbles than green
marbles.
Solution of Viral Maths Problem Confusing Students & Parents
What was the problem?
Using Algebra :
Let r,b and g be the numbers of red, blue and green marbles in the jar.
There are 73 red, blue and green marbles in a jar.
So r + b + g = 73 .....(1)
There are twice as many red marbles as blue marbles.
r = 2b ......(2)
There are 19 more blue marbles than green marbles.
b = g + 19
g = b - 19 ......(3)
Putting (2) and (3) in (1), gives
2b + b + b - 19 = 73
4b = 92
b = 23
Putting b = 23 in (3) gives,
g = 23 - 19 = 4
Putting b = 23 in (2), gives
r = 2x23 = 46
So there are 46 red,23 blue and 4 green marbles in the jar.
Without Algebra :
In the case, we need to try trail and error method.
If g = 1, then b = 20 and r = 2(20) = 40 giving total 40 + 20 + 1 = 61.
If g = 2, then b = 21 and r = 2(21) = 42 giving total 42 + 21 + 2 = 65.
If g = 3, then b = 22 and r = 2(22) = 44 giving total 44 + 22 + 3 = 69.
Total is increasing at the rate of 4. So finally,
If g = 4, then b = 23 and r = 2(23) = 46 giving total 46 + 23 + 4 = 73.
So there are 46 red,23 blue and 4 green marbles in the jar.
