Advertisements
Advertisements
Question
Replace the letter by symbols as + for A, – for B, × for C and ÷ for D. Find the answer for the pattern 4B3C5A30D2 by doing the given operations
Solution
Given the symbols + for A, – for B, × for C, ÷ for D.
∴ 4B3C5A30D2 becomes
4 – 3 × 5 + 30 ÷ 2
Using BIDMAS rule
4 – 3 × 5 + 30 ÷ 2
= 4 – 3 × 5 + 15 ..[÷ done first]
= 4 – 15 + 15 ...[× done second]
= 4 – 0 ...[+ done third]
= 4 ...[– done last]
APPEARS IN
RELATED QUESTIONS
Study and complete the following pattern
Find next three numbers in the following number pattern.
10, 20, 40, 80, ...
Find next three numbers in the following number pattern.
`21/33, 321/444, 4321/5555,` ...
Consider the Fibonacci sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, … Observe and complete the following table by understanding the number pattern followed. After filling the table discuss the pattern followed in addition and subtraction of the numbers of the sequence.
| Steps | Pattern 1 | Pattern 2 |
| i) | 1 + 3 = 4 | 5 − 1 = 4 |
| ii) | 1 + 3 + 8 = ___________ | ? |
| iii) | 1 + 3 + 8 + 21 = ____________ | ? |
| iv) | ? | ? |
Complete the following pattern.
What will be the 25th letter in the pattern? ABCAABBCCAAABBBCCC, ...
The 11th term in the Lucas sequence 1, 3, 4, 7, ... is
Complete the following pattern
1 + 3 + 5 + 7 = 16
`square` + 5 + 7 + 9 = 24
5 + 7 + 9 + `square` = `square`
7 + 9 + `square` + 13 = `square`
Complete the following pattern
AB, DEF, HIJK, `square`, STUVWX
Complete the table by using the following instructions.
A: It is the 6th term in the Fibonacci sequence.
B: The predecessor of 2.
C: LCM of 2 and 3.
D: HCF of 6 and 20
E: The reciprocal of 1/5.
F: The opposite number of –7.
G: The first composite number.
H: Area of a square of side 3 cm.
I: The number of lines of symmetry of an equilateral triangle.
After completing the table, what do you observe? Discuss.
| A | B | C |
| D | E | F |
| G | H | I |
