Answer:
2. x = 135
Step-by-step explanation:
im not sure about question 1
Answer:
10%
Step-by-step explanation:
Answer:
3,6
Step-by-step explanation:
Given, the ratio of blocks A, B, C,D are in the ratio 4:7:3:1
Let us consider the common ratio to be ‘x’.
So, toy blocks with alphabet A is 4x and
toy blocks with alphabet B is 7x and
toy blocks with alphabet C is 3x and
toy blocks with alphabet D is x
Again, the number of ‘A’ blocks is 50 more than the number of ‘C’ blocks.
As no. of ‘A’ and ‘C’ blocks are 4x and 3x respectively.
So,
4x=50 + 3x
x=50
Thus, the number of ‘B’ blocks is 7x = 7(50) = 350
350 is the required number.
Assuming 0 and 100 are included in the possible choices:
There are
![\left\lfloor\dfrac{101}7\right\rfloor=14](https://tex.z-dn.net/?f=%5Cleft%5Clfloor%5Cdfrac%7B101%7D7%5Cright%5Crfloor%3D14)
multiples of 7 between 0 and 100, so there is a
![\dfrac{14}{101}\approx0.1386](https://tex.z-dn.net/?f=%5Cdfrac%7B14%7D%7B101%7D%5Capprox0.1386)
probability of choosing a multiple of 7.