Spider Chart Questions and Answers Quiz-3

4 red ball from bag 2 = 7C4
2 green ball from Bag 1 = 10C2
Probability = 7C4/19C4 * 10C2/19C2 = 175/73644

2 yellow or 2 Red ball from bag 1 = 4C2+3C2
2 yellow or 2 Red ball from bag 2 = 5C2+7C2
Probability (Bag 1) = 4C2+3C2/19C4
Probability (Bag 2) = 5C2+7C2/19C4
NOW % = 4C2+3C2/19C4 ÷ 5C2+7C2/19C4 = 900/31%.
Thus the answer is option A.

After process Total Red ball in New bag = 10
Total yellow Ball in new bag= 9
Probability (yellow or red) = 10C1 + 9C1 ÷ 19C2 = 1/9.

Now in bag to Green ball = 4 ,
Red ball =7+2=9
Yellow Ball = 5 and
Black ball = 3
Now Desired probability is = 4C1*9C1*5C1*3C1 ÷ 21C4 = 12/133 = 0.090

In Bag one - total ball is = 19+x
In bag 2 - Total ball is = 19+2x
Probability (2 Red ball from Bag 1) = 3C2 ÷ (19+x)C2 = 3/276 ------ X=5
Now Probability (2 Red ball from Bag 2) = 7C2 ÷ 29C2 = 3/58

Profit % - 25 & Discount % - 40
Let – MP – 100,
then discount is 40
And SP = 60, and
Cost price – 60/125 * 100 = 48
Profit = 60-48=12
Given SP=1080
And we have to earn a profit of 1080 which is equal to SP
So By above equation Profit on 1 unit is =12
So in order to earn a profit of 60 we have to sell 5 units.

On Friday – given (profit %=60 & Discount %=20 & 2nd discount is 20%)
Let, MP- 100 then
SP- 100-20-16=64 And CP = 64/160 * 100 = 40
Since nothing is mentioned about actual value or price
So we can’t find the answer.

On Tuesday (Profit – 25% & Dis- 40%)
Let MP-100x
then SP-100-40=60 and CP – 60/125 * 100 = 48x

On Wednesday (profit %es -40 & Dis. – 30%)
Let MP –100y then SP-100-30=70 and CP – 70/140 *100= 50y

According to the question CP of Tuesday and SP of Wednesday are equal.
So, 48x : 70y = 1:1 --- to equalize we come to know that X is to multiply with 70 and Y is to multiply with 48.
Hence, CP of Tuesday = SP of Wednesday = 3360x
Now total profit is (given) = 840x+960x=1800 = > X=1
Sum of the Cost price of both the article is (48*70+50*48)*1 = 3360+2400=5760.

On Monday (profit % - 10 & Discount % - 20)
Let, MP – 100, SP-100-20=80 and CP- 800/11
On Friday (profit % - 60 & Discount % - 20)
Let, MP – 100, SP-100-20=80 and CP- 80/160*100 = 50
Clearly, SP is same in both the day So ratio is 50 : 800/11 = 11:16

On Saturday Discount % is = 20*125%= 25% and profit %= 80%
Let MP=100 SP=100-25=75 and CP- 75/180*100 = 375/9
Given that Discount =25=225 (1 unit =9)
Profit = 75/180*80 *9 = 300