Question

ITUIE 2020
KIDS (III & IV)
The difference between the place value and face value of 5 in the number 345678
is
(a) 4995
(b) 4994
(c) 3995
(d) 5995
2.
Chandan bought i3 metre of white cloth,
metre of blue cloth and
metre of red
13
cloth. How much cloth did he buy in all ?
12
m
(b) 100 cm
(c) 1 cm
(d) 2 metre
A bus can hold 91 passengers. The bus start out empty and pick up 1 passenger at the first stop,
2 passengers at the second stop, 3 passengers at the third stop and so fourth. After how many
stops will the bus be full ?
(a) 12
(c) 10
(D 14
(b) 13
Cost of 3 pens is Rs.17.00. How many such pens can be bought with Rs.102.00 ?
(a) 15
(b) 18
(C) 21
(d) 17
– of a water tank is filled with water. If more 375 litres is required to fill the tank completely​

Answer 1

Step-by-step explanation:

Given The difference between the place value and face value of 5 in the number 345678  is

(a) 4995

(b) 4994

(c) 3995

(d) 5995

• Now we need to find the difference between place value and face value. of 5 in the number 345678
• So place value of 5 is 5000
• Face value of 5 is 5
• Now 5000 – 5 = 4,995
• A bus can hold 91 passengers. We need to find number of stops the bus be full.
• So it will be 1 + 2 + 3--------------+ 91
• Now s (s + 1) / 2 = 91
• So s^2 + s = 182
• So s^2 + s – 182 = 0
• So s^2 + 14s – 13s – 182 = 0
• Or s(s + 14) – 13(s + 14) = 0
• (s + 14)(s – 13) = 0
• So s = - 14, 13
• So after 13 stops bus will be full.
• This is solved by unitary method
• Given cost of 3 pens is Rs 17
• So for Rs 17 we get 3 pens
• So for 1 Re it will be 3 / 17
• Now for Re 1 we get 3 /.17 pens
• Therefore for Rs 102 we get 102 x 3 / 17
•                                            = 306 / 17
•                                            = 18 pens

Answer 2

Answer:

right answer is

(A) 39400